Home / 38,753.10-53,479.29-21,754.98

Finding the Fourth Proportional to 38,753.10, 53,479.29 and 21,754.98

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Solution

The fourth proportional to 38,753.10, 53,479.29 and 21,754.98 is: 30,021.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,753.10 : 53,479.29 = 21,754.98 : x
  2. Step 2: Convert to fraction form
    38,753.10/53,479.29 = 21,754.98/x
  3. Step 3: Cross multiply
    38,753.10x = 53,479.29 × 21,754.98
  4. Step 4: Simplify right side
    38,753.10x = 1,163,440,884.36
  5. Step 5: Solve for x
    x = 1,163,440,884.36/38,753.10
  6. Step 6: Final answer
    x = 30,021.88

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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.