Home / 28,508.84-42,759.24-9,788.58

Finding the Fourth Proportional to 28,508.84, 42,759.24 and 9,788.58

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Solution

The fourth proportional to 28,508.84, 42,759.24 and 9,788.58 is: 14,681.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,508.84 : 42,759.24 = 9,788.58 : x
  2. Step 2: Convert to fraction form
    28,508.84/42,759.24 = 9,788.58/x
  3. Step 3: Cross multiply
    28,508.84x = 42,759.24 × 9,788.58
  4. Step 4: Simplify right side
    28,508.84x = 418,552,241.48
  5. Step 5: Solve for x
    x = 418,552,241.48/28,508.84
  6. Step 6: Final answer
    x = 14,681.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.