Home / 22,225.49-30,666.29-13,271.61

Finding the Fourth Proportional to 22,225.49, 30,666.29 and 13,271.61

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Solution

The fourth proportional to 22,225.49, 30,666.29 and 13,271.61 is: 18,311.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,225.49 : 30,666.29 = 13,271.61 : x
  2. Step 2: Convert to fraction form
    22,225.49/30,666.29 = 13,271.61/x
  3. Step 3: Cross multiply
    22,225.49x = 30,666.29 × 13,271.61
  4. Step 4: Simplify right side
    22,225.49x = 406,990,974.67
  5. Step 5: Solve for x
    x = 406,990,974.67/22,225.49
  6. Step 6: Final answer
    x = 18,311.91

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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.