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Finding the Fourth Proportional to 25,987.29, 38,980.95 and 14,886.28

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Solution

The fourth proportional to 25,987.29, 38,980.95 and 14,886.28 is: 22,329.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,987.29 : 38,980.95 = 14,886.28 : x
  2. Step 2: Convert to fraction form
    25,987.29/38,980.95 = 14,886.28/x
  3. Step 3: Cross multiply
    25,987.29x = 38,980.95 × 14,886.28
  4. Step 4: Simplify right side
    25,987.29x = 580,281,336.37
  5. Step 5: Solve for x
    x = 580,281,336.37/25,987.29
  6. Step 6: Final answer
    x = 22,329.43

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Similar ratio
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1.5x scale

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.