Home / 42,331.60-63,519-17,390.80

Finding the Fourth Proportional to 42,331.60, 63,519 and 17,390.80

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Solution

The fourth proportional to 42,331.60, 63,519 and 17,390.80 is: 26,095.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,331.60 : 63,519 = 17,390.80 : x
  2. Step 2: Convert to fraction form
    42,331.60/63,519 = 17,390.80/x
  3. Step 3: Cross multiply
    42,331.60x = 63,519 × 17,390.80
  4. Step 4: Simplify right side
    42,331.60x = 1,104,646,225.20
  5. Step 5: Solve for x
    x = 1,104,646,225.20/42,331.60
  6. Step 6: Final answer
    x = 26,095.07

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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.