Home / 39,447.02-54,437.85-21,541.88

Finding the Fourth Proportional to 39,447.02, 54,437.85 and 21,541.88

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Solution

The fourth proportional to 39,447.02, 54,437.85 and 21,541.88 is: 29,728.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,447.02 : 54,437.85 = 21,541.88 : x
  2. Step 2: Convert to fraction form
    39,447.02/54,437.85 = 21,541.88/x
  3. Step 3: Cross multiply
    39,447.02x = 54,437.85 × 21,541.88
  4. Step 4: Simplify right side
    39,447.02x = 1,172,693,768.25
  5. Step 5: Solve for x
    x = 1,172,693,768.25/39,447.02
  6. Step 6: Final answer
    x = 29,728.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.