Home / 27,730.54-38,268.21-15,156.10

Finding the Fourth Proportional to 27,730.54, 38,268.21 and 15,156.10

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Solution

The fourth proportional to 27,730.54, 38,268.21 and 15,156.10 is: 20,915.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,730.54 : 38,268.21 = 15,156.10 : x
  2. Step 2: Convert to fraction form
    27,730.54/38,268.21 = 15,156.10/x
  3. Step 3: Cross multiply
    27,730.54x = 38,268.21 × 15,156.10
  4. Step 4: Simplify right side
    27,730.54x = 579,996,817.58
  5. Step 5: Solve for x
    x = 579,996,817.58/27,730.54
  6. Step 6: Final answer
    x = 20,915.45

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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.