Home / 25,423.20-38,138.04-9,838.80

Finding the Fourth Proportional to 25,423.20, 38,138.04 and 9,838.80

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Solution

The fourth proportional to 25,423.20, 38,138.04 and 9,838.80 is: 14,759.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,423.20 : 38,138.04 = 9,838.80 : x
  2. Step 2: Convert to fraction form
    25,423.20/38,138.04 = 9,838.80/x
  3. Step 3: Cross multiply
    25,423.20x = 38,138.04 × 9,838.80
  4. Step 4: Simplify right side
    25,423.20x = 375,232,547.95
  5. Step 5: Solve for x
    x = 375,232,547.95/25,423.20
  6. Step 6: Final answer
    x = 14,759.45

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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.