Home / 26,961.60-40,423.20-10,315.20

Finding the Fourth Proportional to 26,961.60, 40,423.20 and 10,315.20

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Solution

The fourth proportional to 26,961.60, 40,423.20 and 10,315.20 is: 15,465.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,961.60 : 40,423.20 = 10,315.20 : x
  2. Step 2: Convert to fraction form
    26,961.60/40,423.20 = 10,315.20/x
  3. Step 3: Cross multiply
    26,961.60x = 40,423.20 × 10,315.20
  4. Step 4: Simplify right side
    26,961.60x = 416,973,392.64
  5. Step 5: Solve for x
    x = 416,973,392.64/26,961.60
  6. Step 6: Final answer
    x = 15,465.45

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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.