Home / 15,380.28-23,088.65-12,945.42

Finding the Fourth Proportional to 15,380.28, 23,088.65 and 12,945.42

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Solution

The fourth proportional to 15,380.28, 23,088.65 and 12,945.42 is: 19,433.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,380.28 : 23,088.65 = 12,945.42 : x
  2. Step 2: Convert to fraction form
    15,380.28/23,088.65 = 12,945.42/x
  3. Step 3: Cross multiply
    15,380.28x = 23,088.65 × 12,945.42
  4. Step 4: Simplify right side
    15,380.28x = 298,892,206.76
  5. Step 5: Solve for x
    x = 298,892,206.76/15,380.28
  6. Step 6: Final answer
    x = 19,433.47

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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.