Home / 42,814.60-64,215.90-13,224.04

Finding the Fourth Proportional to 42,814.60, 64,215.90 and 13,224.04

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Solution

The fourth proportional to 42,814.60, 64,215.90 and 13,224.04 is: 19,834.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,814.60 : 64,215.90 = 13,224.04 : x
  2. Step 2: Convert to fraction form
    42,814.60/64,215.90 = 13,224.04/x
  3. Step 3: Cross multiply
    42,814.60x = 64,215.90 × 13,224.04
  4. Step 4: Simplify right side
    42,814.60x = 849,193,630.24
  5. Step 5: Solve for x
    x = 849,193,630.24/42,814.60
  6. Step 6: Final answer
    x = 19,834.21

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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.