Home / 29,592.42-40,788.78-20,981.40

Finding the Fourth Proportional to 29,592.42, 40,788.78 and 20,981.40

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Solution

The fourth proportional to 29,592.42, 40,788.78 and 20,981.40 is: 28,919.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,592.42 : 40,788.78 = 20,981.40 : x
  2. Step 2: Convert to fraction form
    29,592.42/40,788.78 = 20,981.40/x
  3. Step 3: Cross multiply
    29,592.42x = 40,788.78 × 20,981.40
  4. Step 4: Simplify right side
    29,592.42x = 855,805,708.69
  5. Step 5: Solve for x
    x = 855,805,708.69/29,592.42
  6. Step 6: Final answer
    x = 28,919.76

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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.