Home / 20,626.17-28,457.61-12,125.58

Finding the Fourth Proportional to 20,626.17, 28,457.61 and 12,125.58

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Solution

The fourth proportional to 20,626.17, 28,457.61 and 12,125.58 is: 16,729.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,626.17 : 28,457.61 = 12,125.58 : x
  2. Step 2: Convert to fraction form
    20,626.17/28,457.61 = 12,125.58/x
  3. Step 3: Cross multiply
    20,626.17x = 28,457.61 × 12,125.58
  4. Step 4: Simplify right side
    20,626.17x = 345,065,026.66
  5. Step 5: Solve for x
    x = 345,065,026.66/20,626.17
  6. Step 6: Final answer
    x = 16,729.48

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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.