Home / 28,034.91-42,059.46-9,315.05

Finding the Fourth Proportional to 28,034.91, 42,059.46 and 9,315.05

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Solution

The fourth proportional to 28,034.91, 42,059.46 and 9,315.05 is: 13,974.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,034.91 : 42,059.46 = 9,315.05 : x
  2. Step 2: Convert to fraction form
    28,034.91/42,059.46 = 9,315.05/x
  3. Step 3: Cross multiply
    28,034.91x = 42,059.46 × 9,315.05
  4. Step 4: Simplify right side
    28,034.91x = 391,785,762.58
  5. Step 5: Solve for x
    x = 391,785,762.58/28,034.91
  6. Step 6: Final answer
    x = 13,974.92

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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.