Home / 42,356.28-63,533.28-11,191.80

Finding the Fourth Proportional to 42,356.28, 63,533.28 and 11,191.80

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Solution

The fourth proportional to 42,356.28, 63,533.28 and 11,191.80 is: 16,787.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,356.28 : 63,533.28 = 11,191.80 : x
  2. Step 2: Convert to fraction form
    42,356.28/63,533.28 = 11,191.80/x
  3. Step 3: Cross multiply
    42,356.28x = 63,533.28 × 11,191.80
  4. Step 4: Simplify right side
    42,356.28x = 711,051,763.10
  5. Step 5: Solve for x
    x = 711,051,763.10/42,356.28
  6. Step 6: Final answer
    x = 16,787.40

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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.