Home / 28,113.18-38,797.83-15,539.10

Finding the Fourth Proportional to 28,113.18, 38,797.83 and 15,539.10

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Solution

The fourth proportional to 28,113.18, 38,797.83 and 15,539.10 is: 21,444.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,113.18 : 38,797.83 = 15,539.10 : x
  2. Step 2: Convert to fraction form
    28,113.18/38,797.83 = 15,539.10/x
  3. Step 3: Cross multiply
    28,113.18x = 38,797.83 × 15,539.10
  4. Step 4: Simplify right side
    28,113.18x = 602,883,360.15
  5. Step 5: Solve for x
    x = 602,883,360.15/28,113.18
  6. Step 6: Final answer
    x = 21,444.87

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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.