Home / 15,719.82-23,470.64-14,145.18

Finding the Fourth Proportional to 15,719.82, 23,470.64 and 14,145.18

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Solution

The fourth proportional to 15,719.82, 23,470.64 and 14,145.18 is: 21,119.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,719.82 : 23,470.64 = 14,145.18 : x
  2. Step 2: Convert to fraction form
    15,719.82/23,470.64 = 14,145.18/x
  3. Step 3: Cross multiply
    15,719.82x = 23,470.64 × 14,145.18
  4. Step 4: Simplify right side
    15,719.82x = 331,996,356.79
  5. Step 5: Solve for x
    x = 331,996,356.79/15,719.82
  6. Step 6: Final answer
    x = 21,119.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.