Home / 26,397.96-36,428.28-15,782.10

Finding the Fourth Proportional to 26,397.96, 36,428.28 and 15,782.10

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Solution

The fourth proportional to 26,397.96, 36,428.28 and 15,782.10 is: 21,778.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,397.96 : 36,428.28 = 15,782.10 : x
  2. Step 2: Convert to fraction form
    26,397.96/36,428.28 = 15,782.10/x
  3. Step 3: Cross multiply
    26,397.96x = 36,428.28 × 15,782.10
  4. Step 4: Simplify right side
    26,397.96x = 574,914,757.79
  5. Step 5: Solve for x
    x = 574,914,757.79/26,397.96
  6. Step 6: Final answer
    x = 21,778.76

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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.