Home / 28,655.56-39,545.22-16,722.28

Finding the Fourth Proportional to 28,655.56, 39,545.22 and 16,722.28

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Solution

The fourth proportional to 28,655.56, 39,545.22 and 16,722.28 is: 23,077.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,655.56 : 39,545.22 = 16,722.28 : x
  2. Step 2: Convert to fraction form
    28,655.56/39,545.22 = 16,722.28/x
  3. Step 3: Cross multiply
    28,655.56x = 39,545.22 × 16,722.28
  4. Step 4: Simplify right side
    28,655.56x = 661,286,241.50
  5. Step 5: Solve for x
    x = 661,286,241.50/28,655.56
  6. Step 6: Final answer
    x = 23,077.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.