Home / 20,981.48-28,952.37-12,026.93

Finding the Fourth Proportional to 20,981.48, 28,952.37 and 12,026.93

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Solution

The fourth proportional to 20,981.48, 28,952.37 and 12,026.93 is: 16,595.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,981.48 : 28,952.37 = 12,026.93 : x
  2. Step 2: Convert to fraction form
    20,981.48/28,952.37 = 12,026.93/x
  3. Step 3: Cross multiply
    20,981.48x = 28,952.37 × 12,026.93
  4. Step 4: Simplify right side
    20,981.48x = 348,207,982.56
  5. Step 5: Solve for x
    x = 348,207,982.56/20,981.48
  6. Step 6: Final answer
    x = 16,595.97

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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.