Home / 28,277.64-39,024.90-15,702.48

Finding the Fourth Proportional to 28,277.64, 39,024.90 and 15,702.48

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Solution

The fourth proportional to 28,277.64, 39,024.90 and 15,702.48 is: 21,670.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,277.64 : 39,024.90 = 15,702.48 : x
  2. Step 2: Convert to fraction form
    28,277.64/39,024.90 = 15,702.48/x
  3. Step 3: Cross multiply
    28,277.64x = 39,024.90 × 15,702.48
  4. Step 4: Simplify right side
    28,277.64x = 612,787,711.75
  5. Step 5: Solve for x
    x = 612,787,711.75/28,277.64
  6. Step 6: Final answer
    x = 21,670.40

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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.