Home / 28,065.22-38,727.24-15,489.16

Finding the Fourth Proportional to 28,065.22, 38,727.24 and 15,489.16

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Solution

The fourth proportional to 28,065.22, 38,727.24 and 15,489.16 is: 21,373.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,065.22 : 38,727.24 = 15,489.16 : x
  2. Step 2: Convert to fraction form
    28,065.22/38,727.24 = 15,489.16/x
  3. Step 3: Cross multiply
    28,065.22x = 38,727.24 × 15,489.16
  4. Step 4: Simplify right side
    28,065.22x = 599,852,223.08
  5. Step 5: Solve for x
    x = 599,852,223.08/28,065.22
  6. Step 6: Final answer
    x = 21,373.51

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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.