Home / 34,771.92-47,972.08-21,332.40

Finding the Fourth Proportional to 34,771.92, 47,972.08 and 21,332.40

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Solution

The fourth proportional to 34,771.92, 47,972.08 and 21,332.40 is: 29,430.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,771.92 : 47,972.08 = 21,332.40 : x
  2. Step 2: Convert to fraction form
    34,771.92/47,972.08 = 21,332.40/x
  3. Step 3: Cross multiply
    34,771.92x = 47,972.08 × 21,332.40
  4. Step 4: Simplify right side
    34,771.92x = 1,023,359,599.39
  5. Step 5: Solve for x
    x = 1,023,359,599.39/34,771.92
  6. Step 6: Final answer
    x = 29,430.63

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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.