Home / 27,521.28-37,981.08-15,585.84

Finding the Fourth Proportional to 27,521.28, 37,981.08 and 15,585.84

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Solution

The fourth proportional to 27,521.28, 37,981.08 and 15,585.84 is: 21,509.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,521.28 : 37,981.08 = 15,585.84 : x
  2. Step 2: Convert to fraction form
    27,521.28/37,981.08 = 15,585.84/x
  3. Step 3: Cross multiply
    27,521.28x = 37,981.08 × 15,585.84
  4. Step 4: Simplify right side
    27,521.28x = 591,967,035.91
  5. Step 5: Solve for x
    x = 591,967,035.91/27,521.28
  6. Step 6: Final answer
    x = 21,509.43

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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.