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Finding the Fourth Proportional to 27,320.90, 40,981.35 and 8,852.90

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Solution

The fourth proportional to 27,320.90, 40,981.35 and 8,852.90 is: 13,279.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,320.90 : 40,981.35 = 8,852.90 : x
  2. Step 2: Convert to fraction form
    27,320.90/40,981.35 = 8,852.90/x
  3. Step 3: Cross multiply
    27,320.90x = 40,981.35 × 8,852.90
  4. Step 4: Simplify right side
    27,320.90x = 362,803,793.42
  5. Step 5: Solve for x
    x = 362,803,793.42/27,320.90
  6. Step 6: Final answer
    x = 13,279.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.