Home / 38,577.52-53,246.76-21,820.24

Finding the Fourth Proportional to 38,577.52, 53,246.76 and 21,820.24

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Solution

The fourth proportional to 38,577.52, 53,246.76 and 21,820.24 is: 30,117.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,577.52 : 53,246.76 = 21,820.24 : x
  2. Step 2: Convert to fraction form
    38,577.52/53,246.76 = 21,820.24/x
  3. Step 3: Cross multiply
    38,577.52x = 53,246.76 × 21,820.24
  4. Step 4: Simplify right side
    38,577.52x = 1,161,857,082.42
  5. Step 5: Solve for x
    x = 1,161,857,082.42/38,577.52
  6. Step 6: Final answer
    x = 30,117.46

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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.