Home / 38,738.11-53,463.80-21,743.28

Finding the Fourth Proportional to 38,738.11, 53,463.80 and 21,743.28

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Solution

The fourth proportional to 38,738.11, 53,463.80 and 21,743.28 is: 30,008.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,738.11 : 53,463.80 = 21,743.28 : x
  2. Step 2: Convert to fraction form
    38,738.11/53,463.80 = 21,743.28/x
  3. Step 3: Cross multiply
    38,738.11x = 53,463.80 × 21,743.28
  4. Step 4: Simplify right side
    38,738.11x = 1,162,478,373.26
  5. Step 5: Solve for x
    x = 1,162,478,373.26/38,738.11
  6. Step 6: Final answer
    x = 30,008.65

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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.