Home / 28,555.32-42,842.43-18,013.17

Finding the Fourth Proportional to 28,555.32, 42,842.43 and 18,013.17

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Solution

The fourth proportional to 28,555.32, 42,842.43 and 18,013.17 is: 27,025.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,555.32 : 42,842.43 = 18,013.17 : x
  2. Step 2: Convert to fraction form
    28,555.32/42,842.43 = 18,013.17/x
  3. Step 3: Cross multiply
    28,555.32x = 42,842.43 × 18,013.17
  4. Step 4: Simplify right side
    28,555.32x = 771,727,974.80
  5. Step 5: Solve for x
    x = 771,727,974.80/28,555.32
  6. Step 6: Final answer
    x = 27,025.72

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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.