Home / 28,374.39-39,157.86-15,799.14

Finding the Fourth Proportional to 28,374.39, 39,157.86 and 15,799.14

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Solution

The fourth proportional to 28,374.39, 39,157.86 and 15,799.14 is: 21,803.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,374.39 : 39,157.86 = 15,799.14 : x
  2. Step 2: Convert to fraction form
    28,374.39/39,157.86 = 15,799.14/x
  3. Step 3: Cross multiply
    28,374.39x = 39,157.86 × 15,799.14
  4. Step 4: Simplify right side
    28,374.39x = 618,660,512.24
  5. Step 5: Solve for x
    x = 618,660,512.24/28,374.39
  6. Step 6: Final answer
    x = 21,803.48

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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.