Home / 21,957.76-30,306.18-14,886.46

Finding the Fourth Proportional to 21,957.76, 30,306.18 and 14,886.46

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Solution

The fourth proportional to 21,957.76, 30,306.18 and 14,886.46 is: 20,546.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,957.76 : 30,306.18 = 14,886.46 : x
  2. Step 2: Convert to fraction form
    21,957.76/30,306.18 = 14,886.46/x
  3. Step 3: Cross multiply
    21,957.76x = 30,306.18 × 14,886.46
  4. Step 4: Simplify right side
    21,957.76x = 451,151,736.32
  5. Step 5: Solve for x
    x = 451,151,736.32/21,957.76
  6. Step 6: Final answer
    x = 20,546.35

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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.