Home / 19,455.30-28,987.02-18,182.24

Finding the Fourth Proportional to 19,455.30, 28,987.02 and 18,182.24

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Solution

The fourth proportional to 19,455.30, 28,987.02 and 18,182.24 is: 27,090.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,455.30 : 28,987.02 = 18,182.24 : x
  2. Step 2: Convert to fraction form
    19,455.30/28,987.02 = 18,182.24/x
  3. Step 3: Cross multiply
    19,455.30x = 28,987.02 × 18,182.24
  4. Step 4: Simplify right side
    19,455.30x = 527,048,954.52
  5. Step 5: Solve for x
    x = 527,048,954.52/19,455.30
  6. Step 6: Final answer
    x = 27,090.25

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.