Home / 23,409.12-32,307.28-13,339.36

Finding the Fourth Proportional to 23,409.12, 32,307.28 and 13,339.36

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Solution

The fourth proportional to 23,409.12, 32,307.28 and 13,339.36 is: 18,409.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,409.12 : 32,307.28 = 13,339.36 : x
  2. Step 2: Convert to fraction form
    23,409.12/32,307.28 = 13,339.36/x
  3. Step 3: Cross multiply
    23,409.12x = 32,307.28 × 13,339.36
  4. Step 4: Simplify right side
    23,409.12x = 430,958,438.54
  5. Step 5: Solve for x
    x = 430,958,438.54/23,409.12
  6. Step 6: Final answer
    x = 18,409.85

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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.