Home / 38,160.16-52,659.60-21,393.28

Finding the Fourth Proportional to 38,160.16, 52,659.60 and 21,393.28

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Solution

The fourth proportional to 38,160.16, 52,659.60 and 21,393.28 is: 29,521.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,160.16 : 52,659.60 = 21,393.28 : x
  2. Step 2: Convert to fraction form
    38,160.16/52,659.60 = 21,393.28/x
  3. Step 3: Cross multiply
    38,160.16x = 52,659.60 × 21,393.28
  4. Step 4: Simplify right side
    38,160.16x = 1,126,561,567.49
  5. Step 5: Solve for x
    x = 1,126,561,567.49/38,160.16
  6. Step 6: Final answer
    x = 29,521.93

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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.