Home / 38,737.29-53,455.09-21,738.63

Finding the Fourth Proportional to 38,737.29, 53,455.09 and 21,738.63

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Solution

The fourth proportional to 38,737.29, 53,455.09 and 21,738.63 is: 29,997.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,737.29 : 53,455.09 = 21,738.63 : x
  2. Step 2: Convert to fraction form
    38,737.29/53,455.09 = 21,738.63/x
  3. Step 3: Cross multiply
    38,737.29x = 53,455.09 × 21,738.63
  4. Step 4: Simplify right side
    38,737.29x = 1,162,040,423.13
  5. Step 5: Solve for x
    x = 1,162,040,423.13/38,737.29
  6. Step 6: Final answer
    x = 29,997.98

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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.