Home / 21,681.27-32,532.84-8,543.07

Finding the Fourth Proportional to 21,681.27, 32,532.84 and 8,543.07

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Solution

The fourth proportional to 21,681.27, 32,532.84 and 8,543.07 is: 12,818.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,681.27 : 32,532.84 = 8,543.07 : x
  2. Step 2: Convert to fraction form
    21,681.27/32,532.84 = 8,543.07/x
  3. Step 3: Cross multiply
    21,681.27x = 32,532.84 × 8,543.07
  4. Step 4: Simplify right side
    21,681.27x = 277,930,329.42
  5. Step 5: Solve for x
    x = 277,930,329.42/21,681.27
  6. Step 6: Final answer
    x = 12,818.91

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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.