Home / 38,427.16-53,031.92-21,661.24

Finding the Fourth Proportional to 38,427.16, 53,031.92 and 21,661.24

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Solution

The fourth proportional to 38,427.16, 53,031.92 and 21,661.24 is: 29,893.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,427.16 : 53,031.92 = 21,661.24 : x
  2. Step 2: Convert to fraction form
    38,427.16/53,031.92 = 21,661.24/x
  3. Step 3: Cross multiply
    38,427.16x = 53,031.92 × 21,661.24
  4. Step 4: Simplify right side
    38,427.16x = 1,148,737,146.78
  5. Step 5: Solve for x
    x = 1,148,737,146.78/38,427.16
  6. Step 6: Final answer
    x = 29,893.89

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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.