Home / 28,072.29-38,746.28-18,513.91

Finding the Fourth Proportional to 28,072.29, 38,746.28 and 18,513.91

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Solution

The fourth proportional to 28,072.29, 38,746.28 and 18,513.91 is: 25,553.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,072.29 : 38,746.28 = 18,513.91 : x
  2. Step 2: Convert to fraction form
    28,072.29/38,746.28 = 18,513.91/x
  3. Step 3: Cross multiply
    28,072.29x = 38,746.28 × 18,513.91
  4. Step 4: Simplify right side
    28,072.29x = 717,344,951.32
  5. Step 5: Solve for x
    x = 717,344,951.32/28,072.29
  6. Step 6: Final answer
    x = 25,553.49

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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.