Home / 28,061.68-38,723.91-15,314.54

Finding the Fourth Proportional to 28,061.68, 38,723.91 and 15,314.54

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Solution

The fourth proportional to 28,061.68, 38,723.91 and 15,314.54 is: 21,133.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,061.68 : 38,723.91 = 15,314.54 : x
  2. Step 2: Convert to fraction form
    28,061.68/38,723.91 = 15,314.54/x
  3. Step 3: Cross multiply
    28,061.68x = 38,723.91 × 15,314.54
  4. Step 4: Simplify right side
    28,061.68x = 593,038,868.65
  5. Step 5: Solve for x
    x = 593,038,868.65/28,061.68
  6. Step 6: Final answer
    x = 21,133.41

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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.