Home / 38,987.93-53,803.38-21,082.92

Finding the Fourth Proportional to 38,987.93, 53,803.38 and 21,082.92

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Solution

The fourth proportional to 38,987.93, 53,803.38 and 21,082.92 is: 29,094.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,987.93 : 53,803.38 = 21,082.92 : x
  2. Step 2: Convert to fraction form
    38,987.93/53,803.38 = 21,082.92/x
  3. Step 3: Cross multiply
    38,987.93x = 53,803.38 × 21,082.92
  4. Step 4: Simplify right side
    38,987.93x = 1,134,332,356.27
  5. Step 5: Solve for x
    x = 1,134,332,356.27/38,987.93
  6. Step 6: Final answer
    x = 29,094.45

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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.