Home / 28,055.44-38,716.53-15,308.65

Finding the Fourth Proportional to 28,055.44, 38,716.53 and 15,308.65

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Solution

The fourth proportional to 28,055.44, 38,716.53 and 15,308.65 is: 21,125.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,055.44 : 38,716.53 = 15,308.65 : x
  2. Step 2: Convert to fraction form
    28,055.44/38,716.53 = 15,308.65/x
  3. Step 3: Cross multiply
    28,055.44x = 38,716.53 × 15,308.65
  4. Step 4: Simplify right side
    28,055.44x = 592,697,806.98
  5. Step 5: Solve for x
    x = 592,697,806.98/28,055.44
  6. Step 6: Final answer
    x = 21,125.95

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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.