Home / 28,210.38-42,310.08-10,681.58

Finding the Fourth Proportional to 28,210.38, 42,310.08 and 10,681.58

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Solution

The fourth proportional to 28,210.38, 42,310.08 and 10,681.58 is: 16,020.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,210.38 : 42,310.08 = 10,681.58 : x
  2. Step 2: Convert to fraction form
    28,210.38/42,310.08 = 10,681.58/x
  3. Step 3: Cross multiply
    28,210.38x = 42,310.08 × 10,681.58
  4. Step 4: Simplify right side
    28,210.38x = 451,938,504.33
  5. Step 5: Solve for x
    x = 451,938,504.33/28,210.38
  6. Step 6: Final answer
    x = 16,020.29

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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.