Home / 25,681.72-35,439.04-14,503

Finding the Fourth Proportional to 25,681.72, 35,439.04 and 14,503

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Solution

The fourth proportional to 25,681.72, 35,439.04 and 14,503 is: 20,013.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,681.72 : 35,439.04 = 14,503 : x
  2. Step 2: Convert to fraction form
    25,681.72/35,439.04 = 14,503/x
  3. Step 3: Cross multiply
    25,681.72x = 35,439.04 × 14,503
  4. Step 4: Simplify right side
    25,681.72x = 513,972,397.12
  5. Step 5: Solve for x
    x = 513,972,397.12/25,681.72
  6. Step 6: Final answer
    x = 20,013.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.