Home / 38,565.16-53,219.52-21,569.20

Finding the Fourth Proportional to 38,565.16, 53,219.52 and 21,569.20

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Solution

The fourth proportional to 38,565.16, 53,219.52 and 21,569.20 is: 29,765.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,565.16 : 53,219.52 = 21,569.20 : x
  2. Step 2: Convert to fraction form
    38,565.16/53,219.52 = 21,569.20/x
  3. Step 3: Cross multiply
    38,565.16x = 53,219.52 × 21,569.20
  4. Step 4: Simplify right side
    38,565.16x = 1,147,902,470.78
  5. Step 5: Solve for x
    x = 1,147,902,470.78/38,565.16
  6. Step 6: Final answer
    x = 29,765.27

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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.