Home / 21,821.18-32,727.14-9,971.58

Finding the Fourth Proportional to 21,821.18, 32,727.14 and 9,971.58

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Solution

The fourth proportional to 21,821.18, 32,727.14 and 9,971.58 is: 14,955.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,821.18 : 32,727.14 = 9,971.58 : x
  2. Step 2: Convert to fraction form
    21,821.18/32,727.14 = 9,971.58/x
  3. Step 3: Cross multiply
    21,821.18x = 32,727.14 × 9,971.58
  4. Step 4: Simplify right side
    21,821.18x = 326,341,244.82
  5. Step 5: Solve for x
    x = 326,341,244.82/21,821.18
  6. Step 6: Final answer
    x = 14,955.26

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1.5x scale

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.