Home / 21,545.56-32,320.76-9,855.64

Finding the Fourth Proportional to 21,545.56, 32,320.76 and 9,855.64

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Solution

The fourth proportional to 21,545.56, 32,320.76 and 9,855.64 is: 14,784.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,545.56 : 32,320.76 = 9,855.64 : x
  2. Step 2: Convert to fraction form
    21,545.56/32,320.76 = 9,855.64/x
  3. Step 3: Cross multiply
    21,545.56x = 32,320.76 × 9,855.64
  4. Step 4: Simplify right side
    21,545.56x = 318,541,775.09
  5. Step 5: Solve for x
    x = 318,541,775.09/21,545.56
  6. Step 6: Final answer
    x = 14,784.57

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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.