Home / 21,048,143.63-31,572,215.44-5,091,791.63

Finding the Fourth Proportional to 21,048,143.63, 31,572,215.44 and 5,091,791.63

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Solution

The fourth proportional to 21,048,143.63, 31,572,215.44 and 5,091,791.63 is: 7,637,687.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,048,143.63 : 31,572,215.44 = 5,091,791.63 : x
  2. Step 2: Convert to fraction form
    21,048,143.63/31,572,215.44 = 5,091,791.63/x
  3. Step 3: Cross multiply
    21,048,143.63x = 31,572,215.44 × 5,091,791.63
  4. Step 4: Simplify right side
    21,048,143.63x = 160,759,142,147,358.22
  5. Step 5: Solve for x
    x = 160,759,142,147,358.22/21,048,143.63
  6. Step 6: Final answer
    x = 7,637,687.44

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.