Home / 27,857.01-38,442.56-15,281.49

Finding the Fourth Proportional to 27,857.01, 38,442.56 and 15,281.49

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Solution

The fourth proportional to 27,857.01, 38,442.56 and 15,281.49 is: 21,088.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,857.01 : 38,442.56 = 15,281.49 : x
  2. Step 2: Convert to fraction form
    27,857.01/38,442.56 = 15,281.49/x
  3. Step 3: Cross multiply
    27,857.01x = 38,442.56 × 15,281.49
  4. Step 4: Simplify right side
    27,857.01x = 587,459,519.81
  5. Step 5: Solve for x
    x = 587,459,519.81/27,857.01
  6. Step 6: Final answer
    x = 21,088.39

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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.