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Finding the Fourth Proportional to 26,948.80, 40,384.80 and 19,873.60

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Solution

The fourth proportional to 26,948.80, 40,384.80 and 19,873.60 is: 29,782.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,948.80 : 40,384.80 = 19,873.60 : x
  2. Step 2: Convert to fraction form
    26,948.80/40,384.80 = 19,873.60/x
  3. Step 3: Cross multiply
    26,948.80x = 40,384.80 × 19,873.60
  4. Step 4: Simplify right side
    26,948.80x = 802,591,361.28
  5. Step 5: Solve for x
    x = 802,591,361.28/26,948.80
  6. Step 6: Final answer
    x = 29,782.08

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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.