Home / 28,545.84-39,402.42-20,050.02

Finding the Fourth Proportional to 28,545.84, 39,402.42 and 20,050.02

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Solution

The fourth proportional to 28,545.84, 39,402.42 and 20,050.02 is: 27,675.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,545.84 : 39,402.42 = 20,050.02 : x
  2. Step 2: Convert to fraction form
    28,545.84/39,402.42 = 20,050.02/x
  3. Step 3: Cross multiply
    28,545.84x = 39,402.42 × 20,050.02
  4. Step 4: Simplify right side
    28,545.84x = 790,019,309.05
  5. Step 5: Solve for x
    x = 790,019,309.05/28,545.84
  6. Step 6: Final answer
    x = 27,675.46

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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.