Home / 22,972.79-31,703.66-12,900.71

Finding the Fourth Proportional to 22,972.79, 31,703.66 and 12,900.71

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Solution

The fourth proportional to 22,972.79, 31,703.66 and 12,900.71 is: 17,803.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,972.79 : 31,703.66 = 12,900.71 : x
  2. Step 2: Convert to fraction form
    22,972.79/31,703.66 = 12,900.71/x
  3. Step 3: Cross multiply
    22,972.79x = 31,703.66 × 12,900.71
  4. Step 4: Simplify right side
    22,972.79x = 408,999,723.60
  5. Step 5: Solve for x
    x = 408,999,723.60/22,972.79
  6. Step 6: Final answer
    x = 17,803.66

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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.