Home / 38,523.74-53,158.48-21,756.74

Finding the Fourth Proportional to 38,523.74, 53,158.48 and 21,756.74

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Solution

The fourth proportional to 38,523.74, 53,158.48 and 21,756.74 is: 30,021.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,523.74 : 53,158.48 = 21,756.74 : x
  2. Step 2: Convert to fraction form
    38,523.74/53,158.48 = 21,756.74/x
  3. Step 3: Cross multiply
    38,523.74x = 53,158.48 × 21,756.74
  4. Step 4: Simplify right side
    38,523.74x = 1,156,554,907.97
  5. Step 5: Solve for x
    x = 1,156,554,907.97/38,523.74
  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.