Home / 26,990.40-40,399.14-14,479.68

Finding the Fourth Proportional to 26,990.40, 40,399.14 and 14,479.68

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Solution

The fourth proportional to 26,990.40, 40,399.14 and 14,479.68 is: 21,673.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,990.40 : 40,399.14 = 14,479.68 : x
  2. Step 2: Convert to fraction form
    26,990.40/40,399.14 = 14,479.68/x
  3. Step 3: Cross multiply
    26,990.40x = 40,399.14 × 14,479.68
  4. Step 4: Simplify right side
    26,990.40x = 584,966,619.48
  5. Step 5: Solve for x
    x = 584,966,619.48/26,990.40
  6. Step 6: Final answer
    x = 21,673.14

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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.