Home / 28,040.14-38,670.51-27,900.55

Finding the Fourth Proportional to 28,040.14, 38,670.51 and 27,900.55

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Solution

The fourth proportional to 28,040.14, 38,670.51 and 27,900.55 is: 38,478.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,040.14 : 38,670.51 = 27,900.55 : x
  2. Step 2: Convert to fraction form
    28,040.14/38,670.51 = 27,900.55/x
  3. Step 3: Cross multiply
    28,040.14x = 38,670.51 × 27,900.55
  4. Step 4: Simplify right side
    28,040.14x = 1,078,928,497.78
  5. Step 5: Solve for x
    x = 1,078,928,497.78/28,040.14
  6. Step 6: Final answer
    x = 38,478.00

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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.