Home / 31,362.88-47,055.12-15,767.68

Finding the Fourth Proportional to 31,362.88, 47,055.12 and 15,767.68

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Solution

The fourth proportional to 31,362.88, 47,055.12 and 15,767.68 is: 23,656.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,362.88 : 47,055.12 = 15,767.68 : x
  2. Step 2: Convert to fraction form
    31,362.88/47,055.12 = 15,767.68/x
  3. Step 3: Cross multiply
    31,362.88x = 47,055.12 × 15,767.68
  4. Step 4: Simplify right side
    31,362.88x = 741,950,074.52
  5. Step 5: Solve for x
    x = 741,950,074.52/31,362.88
  6. Step 6: Final answer
    x = 23,656.95

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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.