Home / 23,191.24-31,970.22-15,219.52

Finding the Fourth Proportional to 23,191.24, 31,970.22 and 15,219.52

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Solution

The fourth proportional to 23,191.24, 31,970.22 and 15,219.52 is: 20,980.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,191.24 : 31,970.22 = 15,219.52 : x
  2. Step 2: Convert to fraction form
    23,191.24/31,970.22 = 15,219.52/x
  3. Step 3: Cross multiply
    23,191.24x = 31,970.22 × 15,219.52
  4. Step 4: Simplify right side
    23,191.24x = 486,571,402.69
  5. Step 5: Solve for x
    x = 486,571,402.69/23,191.24
  6. Step 6: Final answer
    x = 20,980.83

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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.