Home / 18,325.30-25,298.13-15,330.10

Finding the Fourth Proportional to 18,325.30, 25,298.13 and 15,330.10

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Solution

The fourth proportional to 18,325.30, 25,298.13 and 15,330.10 is: 21,163.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,325.30 : 25,298.13 = 15,330.10 : x
  2. Step 2: Convert to fraction form
    18,325.30/25,298.13 = 15,330.10/x
  3. Step 3: Cross multiply
    18,325.30x = 25,298.13 × 15,330.10
  4. Step 4: Simplify right side
    18,325.30x = 387,822,862.71
  5. Step 5: Solve for x
    x = 387,822,862.71/18,325.30
  6. Step 6: Final answer
    x = 21,163.25

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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.