Home / 38,689.11-58,042.35-12,395.43

Finding the Fourth Proportional to 38,689.11, 58,042.35 and 12,395.43

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Solution

The fourth proportional to 38,689.11, 58,042.35 and 12,395.43 is: 18,595.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,689.11 : 58,042.35 = 12,395.43 : x
  2. Step 2: Convert to fraction form
    38,689.11/58,042.35 = 12,395.43/x
  3. Step 3: Cross multiply
    38,689.11x = 58,042.35 × 12,395.43
  4. Step 4: Simplify right side
    38,689.11x = 719,459,886.46
  5. Step 5: Solve for x
    x = 719,459,886.46/38,689.11
  6. Step 6: Final answer
    x = 18,595.93

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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.