Home / 28,056.76-42,080.10-9,337.12

Finding the Fourth Proportional to 28,056.76, 42,080.10 and 9,337.12

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Solution

The fourth proportional to 28,056.76, 42,080.10 and 9,337.12 is: 14,004.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,056.76 : 42,080.10 = 9,337.12 : x
  2. Step 2: Convert to fraction form
    28,056.76/42,080.10 = 9,337.12/x
  3. Step 3: Cross multiply
    28,056.76x = 42,080.10 × 9,337.12
  4. Step 4: Simplify right side
    28,056.76x = 392,906,943.31
  5. Step 5: Solve for x
    x = 392,906,943.31/28,056.76
  6. Step 6: Final answer
    x = 14,004.00

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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.