Home / 23,121.48-31,894.65-14,620.98

Finding the Fourth Proportional to 23,121.48, 31,894.65 and 14,620.98

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Solution

The fourth proportional to 23,121.48, 31,894.65 and 14,620.98 is: 20,168.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,121.48 : 31,894.65 = 14,620.98 : x
  2. Step 2: Convert to fraction form
    23,121.48/31,894.65 = 14,620.98/x
  3. Step 3: Cross multiply
    23,121.48x = 31,894.65 × 14,620.98
  4. Step 4: Simplify right side
    23,121.48x = 466,331,039.76
  5. Step 5: Solve for x
    x = 466,331,039.76/23,121.48
  6. Step 6: Final answer
    x = 20,168.74

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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.