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Finding the Fourth Proportional to 26,995.40, 40,458.40 and 12,934.32

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Solution

The fourth proportional to 26,995.40, 40,458.40 and 12,934.32 is: 19,384.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,995.40 : 40,458.40 = 12,934.32 : x
  2. Step 2: Convert to fraction form
    26,995.40/40,458.40 = 12,934.32/x
  3. Step 3: Cross multiply
    26,995.40x = 40,458.40 × 12,934.32
  4. Step 4: Simplify right side
    26,995.40x = 523,301,892.29
  5. Step 5: Solve for x
    x = 523,301,892.29/26,995.40
  6. Step 6: Final answer
    x = 19,384.85

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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.