Home / 23,478.84-32,400.72-12,868.56

Finding the Fourth Proportional to 23,478.84, 32,400.72 and 12,868.56

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Solution

The fourth proportional to 23,478.84, 32,400.72 and 12,868.56 is: 17,758.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,478.84 : 32,400.72 = 12,868.56 : x
  2. Step 2: Convert to fraction form
    23,478.84/32,400.72 = 12,868.56/x
  3. Step 3: Cross multiply
    23,478.84x = 32,400.72 × 12,868.56
  4. Step 4: Simplify right side
    23,478.84x = 416,950,609.36
  5. Step 5: Solve for x
    x = 416,950,609.36/23,478.84
  6. Step 6: Final answer
    x = 17,758.57

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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.