Home / 28,480.14-42,705.63-15,160.70

Finding the Fourth Proportional to 28,480.14, 42,705.63 and 15,160.70

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Solution

The fourth proportional to 28,480.14, 42,705.63 and 15,160.70 is: 22,733.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,480.14 : 42,705.63 = 15,160.70 : x
  2. Step 2: Convert to fraction form
    28,480.14/42,705.63 = 15,160.70/x
  3. Step 3: Cross multiply
    28,480.14x = 42,705.63 × 15,160.70
  4. Step 4: Simplify right side
    28,480.14x = 647,447,351.51
  5. Step 5: Solve for x
    x = 647,447,351.51/28,480.14
  6. Step 6: Final answer
    x = 22,733.29

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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.