Home / 42,354.28-63,530.34-11,189.80

Finding the Fourth Proportional to 42,354.28, 63,530.34 and 11,189.80

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Solution

The fourth proportional to 42,354.28, 63,530.34 and 11,189.80 is: 16,784.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,354.28 : 63,530.34 = 11,189.80 : x
  2. Step 2: Convert to fraction form
    42,354.28/63,530.34 = 11,189.80/x
  3. Step 3: Cross multiply
    42,354.28x = 63,530.34 × 11,189.80
  4. Step 4: Simplify right side
    42,354.28x = 710,891,798.53
  5. Step 5: Solve for x
    x = 710,891,798.53/42,354.28
  6. Step 6: Final answer
    x = 16,784.41

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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.