Home / 31,981.75-47,952.12-13,274.68

Finding the Fourth Proportional to 31,981.75, 47,952.12 and 13,274.68

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Solution

The fourth proportional to 31,981.75, 47,952.12 and 13,274.68 is: 19,903.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,981.75 : 47,952.12 = 13,274.68 : x
  2. Step 2: Convert to fraction form
    31,981.75/47,952.12 = 13,274.68/x
  3. Step 3: Cross multiply
    31,981.75x = 47,952.12 × 13,274.68
  4. Step 4: Simplify right side
    31,981.75x = 636,549,048.32
  5. Step 5: Solve for x
    x = 636,549,048.32/31,981.75
  6. Step 6: Final answer
    x = 19,903.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.