Home / 27,757.02-38,258.02-21,040.50

Finding the Fourth Proportional to 27,757.02, 38,258.02 and 21,040.50

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Solution

The fourth proportional to 27,757.02, 38,258.02 and 21,040.50 is: 29,000.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,757.02 : 38,258.02 = 21,040.50 : x
  2. Step 2: Convert to fraction form
    27,757.02/38,258.02 = 21,040.50/x
  3. Step 3: Cross multiply
    27,757.02x = 38,258.02 × 21,040.50
  4. Step 4: Simplify right side
    27,757.02x = 804,967,869.81
  5. Step 5: Solve for x
    x = 804,967,869.81/27,757.02
  6. Step 6: Final answer
    x = 29,000.51

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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.