Home / 22,042.53-30,417.12-12,479.67

Finding the Fourth Proportional to 22,042.53, 30,417.12 and 12,479.67

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Solution

The fourth proportional to 22,042.53, 30,417.12 and 12,479.67 is: 17,221.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,042.53 : 30,417.12 = 12,479.67 : x
  2. Step 2: Convert to fraction form
    22,042.53/30,417.12 = 12,479.67/x
  3. Step 3: Cross multiply
    22,042.53x = 30,417.12 × 12,479.67
  4. Step 4: Simplify right side
    22,042.53x = 379,595,619.95
  5. Step 5: Solve for x
    x = 379,595,619.95/22,042.53
  6. Step 6: Final answer
    x = 17,221.05

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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.