Home / 39,332.54-54,278.80-21,427.69

Finding the Fourth Proportional to 39,332.54, 54,278.80 and 21,427.69

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Solution

The fourth proportional to 39,332.54, 54,278.80 and 21,427.69 is: 29,570.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,332.54 : 54,278.80 = 21,427.69 : x
  2. Step 2: Convert to fraction form
    39,332.54/54,278.80 = 21,427.69/x
  3. Step 3: Cross multiply
    39,332.54x = 54,278.80 × 21,427.69
  4. Step 4: Simplify right side
    39,332.54x = 1,163,069,299.97
  5. Step 5: Solve for x
    x = 1,163,069,299.97/39,332.54
  6. Step 6: Final answer
    x = 29,570.15

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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.