Home / 26,479.85-36,539.51-15,869.21

Finding the Fourth Proportional to 26,479.85, 36,539.51 and 15,869.21

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Solution

The fourth proportional to 26,479.85, 36,539.51 and 15,869.21 is: 21,897.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,479.85 : 36,539.51 = 15,869.21 : x
  2. Step 2: Convert to fraction form
    26,479.85/36,539.51 = 15,869.21/x
  3. Step 3: Cross multiply
    26,479.85x = 36,539.51 × 15,869.21
  4. Step 4: Simplify right side
    26,479.85x = 579,852,895.44
  5. Step 5: Solve for x
    x = 579,852,895.44/26,479.85
  6. Step 6: Final answer
    x = 21,897.90

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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.