Home / 21,397.70-32,065.86-12,017.97

Finding the Fourth Proportional to 21,397.70, 32,065.86 and 12,017.97

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Solution

The fourth proportional to 21,397.70, 32,065.86 and 12,017.97 is: 18,009.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,397.70 : 32,065.86 = 12,017.97 : x
  2. Step 2: Convert to fraction form
    21,397.70/32,065.86 = 12,017.97/x
  3. Step 3: Cross multiply
    21,397.70x = 32,065.86 × 12,017.97
  4. Step 4: Simplify right side
    21,397.70x = 385,366,597.04
  5. Step 5: Solve for x
    x = 385,366,597.04/21,397.70
  6. Step 6: Final answer
    x = 18,009.72

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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.