Home / 14,820.59-20,440.60-12,589.85

Finding the Fourth Proportional to 14,820.59, 20,440.60 and 12,589.85

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Solution

The fourth proportional to 14,820.59, 20,440.60 and 12,589.85 is: 17,363.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,820.59 : 20,440.60 = 12,589.85 : x
  2. Step 2: Convert to fraction form
    14,820.59/20,440.60 = 12,589.85/x
  3. Step 3: Cross multiply
    14,820.59x = 20,440.60 × 12,589.85
  4. Step 4: Simplify right side
    14,820.59x = 257,343,954.23
  5. Step 5: Solve for x
    x = 257,343,954.23/14,820.59
  6. Step 6: Final answer
    x = 17,363.95

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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.