Home / 27,158.48-40,776.60-20,160.08

Finding the Fourth Proportional to 27,158.48, 40,776.60 and 20,160.08

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Solution

The fourth proportional to 27,158.48, 40,776.60 and 20,160.08 is: 30,268.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,158.48 : 40,776.60 = 20,160.08 : x
  2. Step 2: Convert to fraction form
    27,158.48/40,776.60 = 20,160.08/x
  3. Step 3: Cross multiply
    27,158.48x = 40,776.60 × 20,160.08
  4. Step 4: Simplify right side
    27,158.48x = 822,059,518.13
  5. Step 5: Solve for x
    x = 822,059,518.13/27,158.48
  6. Step 6: Final answer
    x = 30,268.98

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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.