Home / 28,152.12-38,847.84-15,402.52

Finding the Fourth Proportional to 28,152.12, 38,847.84 and 15,402.52

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Solution

The fourth proportional to 28,152.12, 38,847.84 and 15,402.52 is: 21,254.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,152.12 : 38,847.84 = 15,402.52 : x
  2. Step 2: Convert to fraction form
    28,152.12/38,847.84 = 15,402.52/x
  3. Step 3: Cross multiply
    28,152.12x = 38,847.84 × 15,402.52
  4. Step 4: Simplify right side
    28,152.12x = 598,354,632.56
  5. Step 5: Solve for x
    x = 598,354,632.56/28,152.12
  6. Step 6: Final answer
    x = 21,254.34

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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.