Home / 25,510.20-38,265.30-12,388.20

Finding the Fourth Proportional to 25,510.20, 38,265.30 and 12,388.20

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Solution

The fourth proportional to 25,510.20, 38,265.30 and 12,388.20 is: 18,582.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,510.20 : 38,265.30 = 12,388.20 : x
  2. Step 2: Convert to fraction form
    25,510.20/38,265.30 = 12,388.20/x
  3. Step 3: Cross multiply
    25,510.20x = 38,265.30 × 12,388.20
  4. Step 4: Simplify right side
    25,510.20x = 474,038,189.46
  5. Step 5: Solve for x
    x = 474,038,189.46/25,510.20
  6. Step 6: Final answer
    x = 18,582.30

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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.