Home / 39,565.09-54,599.74-21,659.95

Finding the Fourth Proportional to 39,565.09, 54,599.74 and 21,659.95

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Solution

The fourth proportional to 39,565.09, 54,599.74 and 21,659.95 is: 29,890.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,565.09 : 54,599.74 = 21,659.95 : x
  2. Step 2: Convert to fraction form
    39,565.09/54,599.74 = 21,659.95/x
  3. Step 3: Cross multiply
    39,565.09x = 54,599.74 × 21,659.95
  4. Step 4: Simplify right side
    39,565.09x = 1,182,627,638.41
  5. Step 5: Solve for x
    x = 1,182,627,638.41/39,565.09
  6. Step 6: Final answer
    x = 29,890.68

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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.