Home / 18,428.87-25,432.56-10,045.37

Finding the Fourth Proportional to 18,428.87, 25,432.56 and 10,045.37

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Solution

The fourth proportional to 18,428.87, 25,432.56 and 10,045.37 is: 13,863.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,428.87 : 25,432.56 = 10,045.37 : x
  2. Step 2: Convert to fraction form
    18,428.87/25,432.56 = 10,045.37/x
  3. Step 3: Cross multiply
    18,428.87x = 25,432.56 × 10,045.37
  4. Step 4: Simplify right side
    18,428.87x = 255,479,538.83
  5. Step 5: Solve for x
    x = 255,479,538.83/18,428.87
  6. Step 6: Final answer
    x = 13,863.00

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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.