Home / 23,391.45-32,280.35-13,320.63

Finding the Fourth Proportional to 23,391.45, 32,280.35 and 13,320.63

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Solution

The fourth proportional to 23,391.45, 32,280.35 and 13,320.63 is: 18,382.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,391.45 : 32,280.35 = 13,320.63 : x
  2. Step 2: Convert to fraction form
    23,391.45/32,280.35 = 13,320.63/x
  3. Step 3: Cross multiply
    23,391.45x = 32,280.35 × 13,320.63
  4. Step 4: Simplify right side
    23,391.45x = 429,994,532.02
  5. Step 5: Solve for x
    x = 429,994,532.02/23,391.45
  6. Step 6: Final answer
    x = 18,382.55

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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.