Home / 42,219-63,350.28-18,543.15

Finding the Fourth Proportional to 42,219, 63,350.28 and 18,543.15

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Solution

The fourth proportional to 42,219, 63,350.28 and 18,543.15 is: 27,824.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,219 : 63,350.28 = 18,543.15 : x
  2. Step 2: Convert to fraction form
    42,219/63,350.28 = 18,543.15/x
  3. Step 3: Cross multiply
    42,219x = 63,350.28 × 18,543.15
  4. Step 4: Simplify right side
    42,219x = 1,174,713,744.58
  5. Step 5: Solve for x
    x = 1,174,713,744.58/42,219
  6. Step 6: Final answer
    x = 27,824.29

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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.