Home / 39,323.15-54,266.55-21,418.14

Finding the Fourth Proportional to 39,323.15, 54,266.55 and 21,418.14

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Solution

The fourth proportional to 39,323.15, 54,266.55 and 21,418.14 is: 29,557.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,323.15 : 54,266.55 = 21,418.14 : x
  2. Step 2: Convert to fraction form
    39,323.15/54,266.55 = 21,418.14/x
  3. Step 3: Cross multiply
    39,323.15x = 54,266.55 × 21,418.14
  4. Step 4: Simplify right side
    39,323.15x = 1,162,288,565.22
  5. Step 5: Solve for x
    x = 1,162,288,565.22/39,323.15
  6. Step 6: Final answer
    x = 29,557.37

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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.