Home / 25,320.39-34,941.56-13,989.30

Finding the Fourth Proportional to 25,320.39, 34,941.56 and 13,989.30

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Solution

The fourth proportional to 25,320.39, 34,941.56 and 13,989.30 is: 19,304.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,320.39 : 34,941.56 = 13,989.30 : x
  2. Step 2: Convert to fraction form
    25,320.39/34,941.56 = 13,989.30/x
  3. Step 3: Cross multiply
    25,320.39x = 34,941.56 × 13,989.30
  4. Step 4: Simplify right side
    25,320.39x = 488,807,895.36
  5. Step 5: Solve for x
    x = 488,807,895.36/25,320.39
  6. Step 6: Final answer
    x = 19,304.91

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1.5x scale

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.