Home / 28,659.02-42,937.67-11,982.29

Finding the Fourth Proportional to 28,659.02, 42,937.67 and 11,982.29

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Solution

The fourth proportional to 28,659.02, 42,937.67 and 11,982.29 is: 17,952.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,659.02 : 42,937.67 = 11,982.29 : x
  2. Step 2: Convert to fraction form
    28,659.02/42,937.67 = 11,982.29/x
  3. Step 3: Cross multiply
    28,659.02x = 42,937.67 × 11,982.29
  4. Step 4: Simplify right side
    28,659.02x = 514,491,339.26
  5. Step 5: Solve for x
    x = 514,491,339.26/28,659.02
  6. Step 6: Final answer
    x = 17,952.16

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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.