Home / 38,527.11-53,159.90-21,756.87

Finding the Fourth Proportional to 38,527.11, 53,159.90 and 21,756.87

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Solution

The fourth proportional to 38,527.11, 53,159.90 and 21,756.87 is: 30,020.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,527.11 : 53,159.90 = 21,756.87 : x
  2. Step 2: Convert to fraction form
    38,527.11/53,159.90 = 21,756.87/x
  3. Step 3: Cross multiply
    38,527.11x = 53,159.90 × 21,756.87
  4. Step 4: Simplify right side
    38,527.11x = 1,156,592,924.73
  5. Step 5: Solve for x
    x = 1,156,592,924.73/38,527.11
  6. Step 6: Final answer
    x = 30,020.24

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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.