Home / 25,319.52-34,940.28-13,989.84

Finding the Fourth Proportional to 25,319.52, 34,940.28 and 13,989.84

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Solution

The fourth proportional to 25,319.52, 34,940.28 and 13,989.84 is: 19,305.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,319.52 : 34,940.28 = 13,989.84 : x
  2. Step 2: Convert to fraction form
    25,319.52/34,940.28 = 13,989.84/x
  3. Step 3: Cross multiply
    25,319.52x = 34,940.28 × 13,989.84
  4. Step 4: Simplify right side
    25,319.52x = 488,808,926.76
  5. Step 5: Solve for x
    x = 488,808,926.76/25,319.52
  6. Step 6: Final answer
    x = 19,305.62

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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.