Home / 42,886.62-64,336.14-13,306.86

Finding the Fourth Proportional to 42,886.62, 64,336.14 and 13,306.86

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Solution

The fourth proportional to 42,886.62, 64,336.14 and 13,306.86 is: 19,962.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,886.62 : 64,336.14 = 13,306.86 : x
  2. Step 2: Convert to fraction form
    42,886.62/64,336.14 = 13,306.86/x
  3. Step 3: Cross multiply
    42,886.62x = 64,336.14 × 13,306.86
  4. Step 4: Simplify right side
    42,886.62x = 856,112,007.92
  5. Step 5: Solve for x
    x = 856,112,007.92/42,886.62
  6. Step 6: Final answer
    x = 19,962.22

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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.