Home / 26,700.28-40,056.08-7,981.80

Finding the Fourth Proportional to 26,700.28, 40,056.08 and 7,981.80

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Solution

The fourth proportional to 26,700.28, 40,056.08 and 7,981.80 is: 11,974.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,700.28 : 40,056.08 = 7,981.80 : x
  2. Step 2: Convert to fraction form
    26,700.28/40,056.08 = 7,981.80/x
  3. Step 3: Cross multiply
    26,700.28x = 40,056.08 × 7,981.80
  4. Step 4: Simplify right side
    26,700.28x = 319,719,619.34
  5. Step 5: Solve for x
    x = 319,719,619.34/26,700.28
  6. Step 6: Final answer
    x = 11,974.39

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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.