Home / 28,416.39-39,214.92-15,669.61

Finding the Fourth Proportional to 28,416.39, 39,214.92 and 15,669.61

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Solution

The fourth proportional to 28,416.39, 39,214.92 and 15,669.61 is: 21,624.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,416.39 : 39,214.92 = 15,669.61 : x
  2. Step 2: Convert to fraction form
    28,416.39/39,214.92 = 15,669.61/x
  3. Step 3: Cross multiply
    28,416.39x = 39,214.92 × 15,669.61
  4. Step 4: Simplify right side
    28,416.39x = 614,482,502.58
  5. Step 5: Solve for x
    x = 614,482,502.58/28,416.39
  6. Step 6: Final answer
    x = 21,624.23

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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.