Home / 42,353.28-63,528.84-11,188.80

Finding the Fourth Proportional to 42,353.28, 63,528.84 and 11,188.80

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Solution

The fourth proportional to 42,353.28, 63,528.84 and 11,188.80 is: 16,782.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,353.28 : 63,528.84 = 11,188.80 : x
  2. Step 2: Convert to fraction form
    42,353.28/63,528.84 = 11,188.80/x
  3. Step 3: Cross multiply
    42,353.28x = 63,528.84 × 11,188.80
  4. Step 4: Simplify right side
    42,353.28x = 710,811,484.99
  5. Step 5: Solve for x
    x = 710,811,484.99/42,353.28
  6. Step 6: Final answer
    x = 16,782.91

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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.