Home / 27,353.31-37,711.01-20,518.28

Finding the Fourth Proportional to 27,353.31, 37,711.01 and 20,518.28

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Solution

The fourth proportional to 27,353.31, 37,711.01 and 20,518.28 is: 28,287.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,353.31 : 37,711.01 = 20,518.28 : x
  2. Step 2: Convert to fraction form
    27,353.31/37,711.01 = 20,518.28/x
  3. Step 3: Cross multiply
    27,353.31x = 37,711.01 × 20,518.28
  4. Step 4: Simplify right side
    27,353.31x = 773,765,066.42
  5. Step 5: Solve for x
    x = 773,765,066.42/27,353.31
  6. Step 6: Final answer
    x = 28,287.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.