Home / 34,128.99-47,098.08-19,791.60

Finding the Fourth Proportional to 34,128.99, 47,098.08 and 19,791.60

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Solution

The fourth proportional to 34,128.99, 47,098.08 and 19,791.60 is: 27,312.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,128.99 : 47,098.08 = 19,791.60 : x
  2. Step 2: Convert to fraction form
    34,128.99/47,098.08 = 19,791.60/x
  3. Step 3: Cross multiply
    34,128.99x = 47,098.08 × 19,791.60
  4. Step 4: Simplify right side
    34,128.99x = 932,146,360.13
  5. Step 5: Solve for x
    x = 932,146,360.13/34,128.99
  6. Step 6: Final answer
    x = 27,312.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.