Home / 39,222.86-54,125.28-21,317.73

Finding the Fourth Proportional to 39,222.86, 54,125.28 and 21,317.73

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Solution

The fourth proportional to 39,222.86, 54,125.28 and 21,317.73 is: 29,417.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,222.86 : 54,125.28 = 21,317.73 : x
  2. Step 2: Convert to fraction form
    39,222.86/54,125.28 = 21,317.73/x
  3. Step 3: Cross multiply
    39,222.86x = 54,125.28 × 21,317.73
  4. Step 4: Simplify right side
    39,222.86x = 1,153,828,105.21
  5. Step 5: Solve for x
    x = 1,153,828,105.21/39,222.86
  6. Step 6: Final answer
    x = 29,417.24

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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.