Home / 28,478.65-39,293.88-16,534.79

Finding the Fourth Proportional to 28,478.65, 39,293.88 and 16,534.79

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Solution

The fourth proportional to 28,478.65, 39,293.88 and 16,534.79 is: 22,814.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,478.65 : 39,293.88 = 16,534.79 : x
  2. Step 2: Convert to fraction form
    28,478.65/39,293.88 = 16,534.79/x
  3. Step 3: Cross multiply
    28,478.65x = 39,293.88 × 16,534.79
  4. Step 4: Simplify right side
    28,478.65x = 649,716,054.09
  5. Step 5: Solve for x
    x = 649,716,054.09/28,478.65
  6. Step 6: Final answer
    x = 22,814.15

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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.