Home / 20,545.51-28,352.58-11,595.91

Finding the Fourth Proportional to 20,545.51, 28,352.58 and 11,595.91

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Solution

The fourth proportional to 20,545.51, 28,352.58 and 11,595.91 is: 16,002.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,545.51 : 28,352.58 = 11,595.91 : x
  2. Step 2: Convert to fraction form
    20,545.51/28,352.58 = 11,595.91/x
  3. Step 3: Cross multiply
    20,545.51x = 28,352.58 × 11,595.91
  4. Step 4: Simplify right side
    20,545.51x = 328,773,965.95
  5. Step 5: Solve for x
    x = 328,773,965.95/20,545.51
  6. Step 6: Final answer
    x = 16,002.23

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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.