Home / 15,339.40-23,009.10-13,832.80

Finding the Fourth Proportional to 15,339.40, 23,009.10 and 13,832.80

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Solution

The fourth proportional to 15,339.40, 23,009.10 and 13,832.80 is: 20,749.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,339.40 : 23,009.10 = 13,832.80 : x
  2. Step 2: Convert to fraction form
    15,339.40/23,009.10 = 13,832.80/x
  3. Step 3: Cross multiply
    15,339.40x = 23,009.10 × 13,832.80
  4. Step 4: Simplify right side
    15,339.40x = 318,280,278.48
  5. Step 5: Solve for x
    x = 318,280,278.48/15,339.40
  6. Step 6: Final answer
    x = 20,749.20

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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.