Home / 42,585.20-63,887.40-13,004.40

Finding the Fourth Proportional to 42,585.20, 63,887.40 and 13,004.40

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Solution

The fourth proportional to 42,585.20, 63,887.40 and 13,004.40 is: 19,509.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,585.20 : 63,887.40 = 13,004.40 : x
  2. Step 2: Convert to fraction form
    42,585.20/63,887.40 = 13,004.40/x
  3. Step 3: Cross multiply
    42,585.20x = 63,887.40 × 13,004.40
  4. Step 4: Simplify right side
    42,585.20x = 830,817,304.56
  5. Step 5: Solve for x
    x = 830,817,304.56/42,585.20
  6. Step 6: Final answer
    x = 19,509.53

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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.