Home / 28,330.32-39,093.81-15,584.40

Finding the Fourth Proportional to 28,330.32, 39,093.81 and 15,584.40

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Solution

The fourth proportional to 28,330.32, 39,093.81 and 15,584.40 is: 21,505.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,330.32 : 39,093.81 = 15,584.40 : x
  2. Step 2: Convert to fraction form
    28,330.32/39,093.81 = 15,584.40/x
  3. Step 3: Cross multiply
    28,330.32x = 39,093.81 × 15,584.40
  4. Step 4: Simplify right side
    28,330.32x = 609,253,572.56
  5. Step 5: Solve for x
    x = 609,253,572.56/28,330.32
  6. Step 6: Final answer
    x = 21,505.35

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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.