Home / 39,557.55-54,589.48-21,653.69

Finding the Fourth Proportional to 39,557.55, 54,589.48 and 21,653.69

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Solution

The fourth proportional to 39,557.55, 54,589.48 and 21,653.69 is: 29,882.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,557.55 : 54,589.48 = 21,653.69 : x
  2. Step 2: Convert to fraction form
    39,557.55/54,589.48 = 21,653.69/x
  3. Step 3: Cross multiply
    39,557.55x = 54,589.48 × 21,653.69
  4. Step 4: Simplify right side
    39,557.55x = 1,182,063,881.32
  5. Step 5: Solve for x
    x = 1,182,063,881.32/39,557.55
  6. Step 6: Final answer
    x = 29,882.13

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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.