Home / 26,421.90-36,463.32-15,809.46

Finding the Fourth Proportional to 26,421.90, 36,463.32 and 15,809.46

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Solution

The fourth proportional to 26,421.90, 36,463.32 and 15,809.46 is: 21,817.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,421.90 : 36,463.32 = 15,809.46 : x
  2. Step 2: Convert to fraction form
    26,421.90/36,463.32 = 15,809.46/x
  3. Step 3: Cross multiply
    26,421.90x = 36,463.32 × 15,809.46
  4. Step 4: Simplify right side
    26,421.90x = 576,465,399.01
  5. Step 5: Solve for x
    x = 576,465,399.01/26,421.90
  6. Step 6: Final answer
    x = 21,817.71

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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.