Home / 28,335.34-42,508.14-11,686.11

Finding the Fourth Proportional to 28,335.34, 42,508.14 and 11,686.11

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Solution

The fourth proportional to 28,335.34, 42,508.14 and 11,686.11 is: 17,531.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,335.34 : 42,508.14 = 11,686.11 : x
  2. Step 2: Convert to fraction form
    28,335.34/42,508.14 = 11,686.11/x
  3. Step 3: Cross multiply
    28,335.34x = 42,508.14 × 11,686.11
  4. Step 4: Simplify right side
    28,335.34x = 496,754,799.94
  5. Step 5: Solve for x
    x = 496,754,799.94/28,335.34
  6. Step 6: Final answer
    x = 17,531.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.