Home / 42,186.90-63,281.50-18,482.25

Finding the Fourth Proportional to 42,186.90, 63,281.50 and 18,482.25

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Solution

The fourth proportional to 42,186.90, 63,281.50 and 18,482.25 is: 27,723.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,186.90 : 63,281.50 = 18,482.25 : x
  2. Step 2: Convert to fraction form
    42,186.90/63,281.50 = 18,482.25/x
  3. Step 3: Cross multiply
    42,186.90x = 63,281.50 × 18,482.25
  4. Step 4: Simplify right side
    42,186.90x = 1,169,584,457.17
  5. Step 5: Solve for x
    x = 1,169,584,457.17/42,186.90
  6. Step 6: Final answer
    x = 27,723.88

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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.