Home / 42,368.60-63,532.32-12,780.92

Finding the Fourth Proportional to 42,368.60, 63,532.32 and 12,780.92

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Solution

The fourth proportional to 42,368.60, 63,532.32 and 12,780.92 is: 19,165.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,368.60 : 63,532.32 = 12,780.92 : x
  2. Step 2: Convert to fraction form
    42,368.60/63,532.32 = 12,780.92/x
  3. Step 3: Cross multiply
    42,368.60x = 63,532.32 × 12,780.92
  4. Step 4: Simplify right side
    42,368.60x = 812,001,499.33
  5. Step 5: Solve for x
    x = 812,001,499.33/42,368.60
  6. Step 6: Final answer
    x = 19,165.17

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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.