Home / 21,957.36-30,301.04-11,885.74

Finding the Fourth Proportional to 21,957.36, 30,301.04 and 11,885.74

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Solution

The fourth proportional to 21,957.36, 30,301.04 and 11,885.74 is: 16,402.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,957.36 : 30,301.04 = 11,885.74 : x
  2. Step 2: Convert to fraction form
    21,957.36/30,301.04 = 11,885.74/x
  3. Step 3: Cross multiply
    21,957.36x = 30,301.04 × 11,885.74
  4. Step 4: Simplify right side
    21,957.36x = 360,150,283.17
  5. Step 5: Solve for x
    x = 360,150,283.17/21,957.36
  6. Step 6: Final answer
    x = 16,402.26

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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.