Home / 42,476.24-63,678.72-18,779.96

Finding the Fourth Proportional to 42,476.24, 63,678.72 and 18,779.96

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Solution

The fourth proportional to 42,476.24, 63,678.72 and 18,779.96 is: 28,154.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,476.24 : 63,678.72 = 18,779.96 : x
  2. Step 2: Convert to fraction form
    42,476.24/63,678.72 = 18,779.96/x
  3. Step 3: Cross multiply
    42,476.24x = 63,678.72 × 18,779.96
  4. Step 4: Simplify right side
    42,476.24x = 1,195,883,814.45
  5. Step 5: Solve for x
    x = 1,195,883,814.45/42,476.24
  6. Step 6: Final answer
    x = 28,154.18

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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.