Home / 28,008.16-38,650.12-15,261.13

Finding the Fourth Proportional to 28,008.16, 38,650.12 and 15,261.13

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Solution

The fourth proportional to 28,008.16, 38,650.12 and 15,261.13 is: 21,059.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,008.16 : 38,650.12 = 15,261.13 : x
  2. Step 2: Convert to fraction form
    28,008.16/38,650.12 = 15,261.13/x
  3. Step 3: Cross multiply
    28,008.16x = 38,650.12 × 15,261.13
  4. Step 4: Simplify right side
    28,008.16x = 589,844,505.84
  5. Step 5: Solve for x
    x = 589,844,505.84/28,008.16
  6. Step 6: Final answer
    x = 21,059.74

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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.