Home / 15,721.39-23,582.10-3,875.17

Finding the Fourth Proportional to 15,721.39, 23,582.10 and 3,875.17

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Solution

The fourth proportional to 15,721.39, 23,582.10 and 3,875.17 is: 5,812.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,721.39 : 23,582.10 = 3,875.17 : x
  2. Step 2: Convert to fraction form
    15,721.39/23,582.10 = 3,875.17/x
  3. Step 3: Cross multiply
    15,721.39x = 23,582.10 × 3,875.17
  4. Step 4: Simplify right side
    15,721.39x = 91,384,528.55
  5. Step 5: Solve for x
    x = 91,384,528.55/15,721.39
  6. Step 6: Final answer
    x = 5,812.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.