Home / 20,545.37-28,352.59-11,113.93

Finding the Fourth Proportional to 20,545.37, 28,352.59 and 11,113.93

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Solution

The fourth proportional to 20,545.37, 28,352.59 and 11,113.93 is: 15,337.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,545.37 : 28,352.59 = 11,113.93 : x
  2. Step 2: Convert to fraction form
    20,545.37/28,352.59 = 11,113.93/x
  3. Step 3: Cross multiply
    20,545.37x = 28,352.59 × 11,113.93
  4. Step 4: Simplify right side
    20,545.37x = 315,108,700.58
  5. Step 5: Solve for x
    x = 315,108,700.58/20,545.37
  6. Step 6: Final answer
    x = 15,337.21

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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.