Home / 28,441.16-42,641.66-12,637.61

Finding the Fourth Proportional to 28,441.16, 42,641.66 and 12,637.61

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Solution

The fourth proportional to 28,441.16, 42,641.66 and 12,637.61 is: 18,947.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,441.16 : 42,641.66 = 12,637.61 : x
  2. Step 2: Convert to fraction form
    28,441.16/42,641.66 = 12,637.61/x
  3. Step 3: Cross multiply
    28,441.16x = 42,641.66 × 12,637.61
  4. Step 4: Simplify right side
    28,441.16x = 538,888,392.44
  5. Step 5: Solve for x
    x = 538,888,392.44/28,441.16
  6. Step 6: Final answer
    x = 18,947.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.