Home / 26,255.32-36,216.06-15,638.68

Finding the Fourth Proportional to 26,255.32, 36,216.06 and 15,638.68

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Solution

The fourth proportional to 26,255.32, 36,216.06 and 15,638.68 is: 21,571.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,255.32 : 36,216.06 = 15,638.68 : x
  2. Step 2: Convert to fraction form
    26,255.32/36,216.06 = 15,638.68/x
  3. Step 3: Cross multiply
    26,255.32x = 36,216.06 × 15,638.68
  4. Step 4: Simplify right side
    26,255.32x = 566,371,373.20
  5. Step 5: Solve for x
    x = 566,371,373.20/26,255.32
  6. Step 6: Final answer
    x = 21,571.68

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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.