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Finding the Fourth Proportional to 25,651.40, 38,479.28 and 9,009.98

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Solution

The fourth proportional to 25,651.40, 38,479.28 and 9,009.98 is: 13,515.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,651.40 : 38,479.28 = 9,009.98 : x
  2. Step 2: Convert to fraction form
    25,651.40/38,479.28 = 9,009.98/x
  3. Step 3: Cross multiply
    25,651.40x = 38,479.28 × 9,009.98
  4. Step 4: Simplify right side
    25,651.40x = 346,697,543.21
  5. Step 5: Solve for x
    x = 346,697,543.21/25,651.40
  6. Step 6: Final answer
    x = 13,515.74

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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.