Home / 21,795.12-32,706-14,420.88

Finding the Fourth Proportional to 21,795.12, 32,706 and 14,420.88

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Solution

The fourth proportional to 21,795.12, 32,706 and 14,420.88 is: 21,640.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,795.12 : 32,706 = 14,420.88 : x
  2. Step 2: Convert to fraction form
    21,795.12/32,706 = 14,420.88/x
  3. Step 3: Cross multiply
    21,795.12x = 32,706 × 14,420.88
  4. Step 4: Simplify right side
    21,795.12x = 471,649,301.28
  5. Step 5: Solve for x
    x = 471,649,301.28/21,795.12
  6. Step 6: Final answer
    x = 21,640.13

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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.