Home / 21,957.59-30,301.55-11,886.14

Finding the Fourth Proportional to 21,957.59, 30,301.55 and 11,886.14

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Solution

The fourth proportional to 21,957.59, 30,301.55 and 11,886.14 is: 16,402.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,957.59 : 30,301.55 = 11,886.14 : x
  2. Step 2: Convert to fraction form
    21,957.59/30,301.55 = 11,886.14/x
  3. Step 3: Cross multiply
    21,957.59x = 30,301.55 × 11,886.14
  4. Step 4: Simplify right side
    21,957.59x = 360,168,254.58
  5. Step 5: Solve for x
    x = 360,168,254.58/21,957.59
  6. Step 6: Final answer
    x = 16,402.91

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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.