Home / 38,565.74-53,218.59-21,570.66

Finding the Fourth Proportional to 38,565.74, 53,218.59 and 21,570.66

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Solution

The fourth proportional to 38,565.74, 53,218.59 and 21,570.66 is: 29,766.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,565.74 : 53,218.59 = 21,570.66 : x
  2. Step 2: Convert to fraction form
    38,565.74/53,218.59 = 21,570.66/x
  3. Step 3: Cross multiply
    38,565.74x = 53,218.59 × 21,570.66
  4. Step 4: Simplify right side
    38,565.74x = 1,147,960,110.57
  5. Step 5: Solve for x
    x = 1,147,960,110.57/38,565.74
  6. Step 6: Final answer
    x = 29,766.32

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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.