Home / 26,417.20-36,389.64-20,118.64

Finding the Fourth Proportional to 26,417.20, 36,389.64 and 20,118.64

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Solution

The fourth proportional to 26,417.20, 36,389.64 and 20,118.64 is: 27,713.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,417.20 : 36,389.64 = 20,118.64 : x
  2. Step 2: Convert to fraction form
    26,417.20/36,389.64 = 20,118.64/x
  3. Step 3: Cross multiply
    26,417.20x = 36,389.64 × 20,118.64
  4. Step 4: Simplify right side
    26,417.20x = 732,110,066.89
  5. Step 5: Solve for x
    x = 732,110,066.89/26,417.20
  6. Step 6: Final answer
    x = 27,713.39

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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.