Home / 25,319.14-34,940-13,989.11

Finding the Fourth Proportional to 25,319.14, 34,940 and 13,989.11

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Solution

The fourth proportional to 25,319.14, 34,940 and 13,989.11 is: 19,304.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,319.14 : 34,940 = 13,989.11 : x
  2. Step 2: Convert to fraction form
    25,319.14/34,940 = 13,989.11/x
  3. Step 3: Cross multiply
    25,319.14x = 34,940 × 13,989.11
  4. Step 4: Simplify right side
    25,319.14x = 488,779,503.40
  5. Step 5: Solve for x
    x = 488,779,503.40/25,319.14
  6. Step 6: Final answer
    x = 19,304.74

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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.