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Finding the Fourth Proportional to 28,597.50, 39,464.55 and 17,419.50

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Solution

The fourth proportional to 28,597.50, 39,464.55 and 17,419.50 is: 24,038.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,597.50 : 39,464.55 = 17,419.50 : x
  2. Step 2: Convert to fraction form
    28,597.50/39,464.55 = 17,419.50/x
  3. Step 3: Cross multiply
    28,597.50x = 39,464.55 × 17,419.50
  4. Step 4: Simplify right side
    28,597.50x = 687,452,728.73
  5. Step 5: Solve for x
    x = 687,452,728.73/28,597.50
  6. Step 6: Final answer
    x = 24,038.91

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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.