Home / 28,691.10-39,587.23-17,360.31

Finding the Fourth Proportional to 28,691.10, 39,587.23 and 17,360.31

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Solution

The fourth proportional to 28,691.10, 39,587.23 and 17,360.31 is: 23,953.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,691.10 : 39,587.23 = 17,360.31 : x
  2. Step 2: Convert to fraction form
    28,691.10/39,587.23 = 17,360.31/x
  3. Step 3: Cross multiply
    28,691.10x = 39,587.23 × 17,360.31
  4. Step 4: Simplify right side
    28,691.10x = 687,246,754.99
  5. Step 5: Solve for x
    x = 687,246,754.99/28,691.10
  6. Step 6: Final answer
    x = 23,953.31

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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.