Home / 20,301.60-30,451.76-12,038.24

Finding the Fourth Proportional to 20,301.60, 30,451.76 and 12,038.24

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Solution

The fourth proportional to 20,301.60, 30,451.76 and 12,038.24 is: 18,056.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,301.60 : 30,451.76 = 12,038.24 : x
  2. Step 2: Convert to fraction form
    20,301.60/30,451.76 = 12,038.24/x
  3. Step 3: Cross multiply
    20,301.60x = 30,451.76 × 12,038.24
  4. Step 4: Simplify right side
    20,301.60x = 366,585,595.30
  5. Step 5: Solve for x
    x = 366,585,595.30/20,301.60
  6. Step 6: Final answer
    x = 18,056.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.