Home / 39,298.78-54,232.23-21,393.91

Finding the Fourth Proportional to 39,298.78, 54,232.23 and 21,393.91

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Solution

The fourth proportional to 39,298.78, 54,232.23 and 21,393.91 is: 29,523.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,298.78 : 54,232.23 = 21,393.91 : x
  2. Step 2: Convert to fraction form
    39,298.78/54,232.23 = 21,393.91/x
  3. Step 3: Cross multiply
    39,298.78x = 54,232.23 × 21,393.91
  4. Step 4: Simplify right side
    39,298.78x = 1,160,239,475.40
  5. Step 5: Solve for x
    x = 1,160,239,475.40/39,298.78
  6. Step 6: Final answer
    x = 29,523.55

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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.