Home / 28,182.14-42,280.23-8,461.06

Finding the Fourth Proportional to 28,182.14, 42,280.23 and 8,461.06

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Solution

The fourth proportional to 28,182.14, 42,280.23 and 8,461.06 is: 12,693.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,182.14 : 42,280.23 = 8,461.06 : x
  2. Step 2: Convert to fraction form
    28,182.14/42,280.23 = 8,461.06/x
  3. Step 3: Cross multiply
    28,182.14x = 42,280.23 × 8,461.06
  4. Step 4: Simplify right side
    28,182.14x = 357,735,562.84
  5. Step 5: Solve for x
    x = 357,735,562.84/28,182.14
  6. Step 6: Final answer
    x = 12,693.70

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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.