Home / 21,407.75-29,541.95-11,848.04

Finding the Fourth Proportional to 21,407.75, 29,541.95 and 11,848.04

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Solution

The fourth proportional to 21,407.75, 29,541.95 and 11,848.04 is: 16,349.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,407.75 : 29,541.95 = 11,848.04 : x
  2. Step 2: Convert to fraction form
    21,407.75/29,541.95 = 11,848.04/x
  3. Step 3: Cross multiply
    21,407.75x = 29,541.95 × 11,848.04
  4. Step 4: Simplify right side
    21,407.75x = 350,013,998.33
  5. Step 5: Solve for x
    x = 350,013,998.33/21,407.75
  6. Step 6: Final answer
    x = 16,349.88

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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.