Home / 26,719.68-36,870.96-15,388.56

Finding the Fourth Proportional to 26,719.68, 36,870.96 and 15,388.56

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Solution

The fourth proportional to 26,719.68, 36,870.96 and 15,388.56 is: 21,234.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,719.68 : 36,870.96 = 15,388.56 : x
  2. Step 2: Convert to fraction form
    26,719.68/36,870.96 = 15,388.56/x
  3. Step 3: Cross multiply
    26,719.68x = 36,870.96 × 15,388.56
  4. Step 4: Simplify right side
    26,719.68x = 567,390,980.22
  5. Step 5: Solve for x
    x = 567,390,980.22/26,719.68
  6. Step 6: Final answer
    x = 21,234.95

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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.