Home / 21,908.08-32,862.60-7,117

Finding the Fourth Proportional to 21,908.08, 32,862.60 and 7,117

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Solution

The fourth proportional to 21,908.08, 32,862.60 and 7,117 is: 10,675.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,908.08 : 32,862.60 = 7,117 : x
  2. Step 2: Convert to fraction form
    21,908.08/32,862.60 = 7,117/x
  3. Step 3: Cross multiply
    21,908.08x = 32,862.60 × 7,117
  4. Step 4: Simplify right side
    21,908.08x = 233,883,124.20
  5. Step 5: Solve for x
    x = 233,883,124.20/21,908.08
  6. Step 6: Final answer
    x = 10,675.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.