Home / 18,429.05-25,432.08-10,471.28

Finding the Fourth Proportional to 18,429.05, 25,432.08 and 10,471.28

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Solution

The fourth proportional to 18,429.05, 25,432.08 and 10,471.28 is: 14,450.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,429.05 : 25,432.08 = 10,471.28 : x
  2. Step 2: Convert to fraction form
    18,429.05/25,432.08 = 10,471.28/x
  3. Step 3: Cross multiply
    18,429.05x = 25,432.08 × 10,471.28
  4. Step 4: Simplify right side
    18,429.05x = 266,306,264.23
  5. Step 5: Solve for x
    x = 266,306,264.23/18,429.05
  6. Step 6: Final answer
    x = 14,450.35

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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.