Home / 28,691.29-39,587.83-16,749.20

Finding the Fourth Proportional to 28,691.29, 39,587.83 and 16,749.20

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Solution

The fourth proportional to 28,691.29, 39,587.83 and 16,749.20 is: 23,110.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,691.29 : 39,587.83 = 16,749.20 : x
  2. Step 2: Convert to fraction form
    28,691.29/39,587.83 = 16,749.20/x
  3. Step 3: Cross multiply
    28,691.29x = 39,587.83 × 16,749.20
  4. Step 4: Simplify right side
    28,691.29x = 663,064,693.50
  5. Step 5: Solve for x
    x = 663,064,693.50/28,691.29
  6. Step 6: Final answer
    x = 23,110.32

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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.