Home / 39,235.97-54,146.70-21,332.18

Finding the Fourth Proportional to 39,235.97, 54,146.70 and 21,332.18

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Solution

The fourth proportional to 39,235.97, 54,146.70 and 21,332.18 is: 29,438.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,235.97 : 54,146.70 = 21,332.18 : x
  2. Step 2: Convert to fraction form
    39,235.97/54,146.70 = 21,332.18/x
  3. Step 3: Cross multiply
    39,235.97x = 54,146.70 × 21,332.18
  4. Step 4: Simplify right side
    39,235.97x = 1,155,066,880.07
  5. Step 5: Solve for x
    x = 1,155,066,880.07/39,235.97
  6. Step 6: Final answer
    x = 29,438.98

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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.