Home / 20,965.28-31,320.41-14,994.77

Finding the Fourth Proportional to 20,965.28, 31,320.41 and 14,994.77

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Solution

The fourth proportional to 20,965.28, 31,320.41 and 14,994.77 is: 22,400.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,965.28 : 31,320.41 = 14,994.77 : x
  2. Step 2: Convert to fraction form
    20,965.28/31,320.41 = 14,994.77/x
  3. Step 3: Cross multiply
    20,965.28x = 31,320.41 × 14,994.77
  4. Step 4: Simplify right side
    20,965.28x = 469,642,112.68
  5. Step 5: Solve for x
    x = 469,642,112.68/20,965.28
  6. Step 6: Final answer
    x = 22,400.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.