Home / 28,306.14-42,455.97-8,587.50

Finding the Fourth Proportional to 28,306.14, 42,455.97 and 8,587.50

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Solution

The fourth proportional to 28,306.14, 42,455.97 and 8,587.50 is: 12,880.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,306.14 : 42,455.97 = 8,587.50 : x
  2. Step 2: Convert to fraction form
    28,306.14/42,455.97 = 8,587.50/x
  3. Step 3: Cross multiply
    28,306.14x = 42,455.97 × 8,587.50
  4. Step 4: Simplify right side
    28,306.14x = 364,590,642.38
  5. Step 5: Solve for x
    x = 364,590,642.38/28,306.14
  6. Step 6: Final answer
    x = 12,880.27

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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.