Home / 28,042.81-42,083.35-15,555.04

Finding the Fourth Proportional to 28,042.81, 42,083.35 and 15,555.04

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Solution

The fourth proportional to 28,042.81, 42,083.35 and 15,555.04 is: 23,343.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,042.81 : 42,083.35 = 15,555.04 : x
  2. Step 2: Convert to fraction form
    28,042.81/42,083.35 = 15,555.04/x
  3. Step 3: Cross multiply
    28,042.81x = 42,083.35 × 15,555.04
  4. Step 4: Simplify right side
    28,042.81x = 654,608,048.49
  5. Step 5: Solve for x
    x = 654,608,048.49/28,042.81
  6. Step 6: Final answer
    x = 23,343.17

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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.