Home / 27,817.83-38,388.40-15,071.06

Finding the Fourth Proportional to 27,817.83, 38,388.40 and 15,071.06

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Solution

The fourth proportional to 27,817.83, 38,388.40 and 15,071.06 is: 20,797.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,817.83 : 38,388.40 = 15,071.06 : x
  2. Step 2: Convert to fraction form
    27,817.83/38,388.40 = 15,071.06/x
  3. Step 3: Cross multiply
    27,817.83x = 38,388.40 × 15,071.06
  4. Step 4: Simplify right side
    27,817.83x = 578,553,938.00
  5. Step 5: Solve for x
    x = 578,553,938.00/27,817.83
  6. Step 6: Final answer
    x = 20,797.95

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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.