Home / 28,308.84-42,463.36-8,587.57

Finding the Fourth Proportional to 28,308.84, 42,463.36 and 8,587.57

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Solution

The fourth proportional to 28,308.84, 42,463.36 and 8,587.57 is: 12,881.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,308.84 : 42,463.36 = 8,587.57 : x
  2. Step 2: Convert to fraction form
    28,308.84/42,463.36 = 8,587.57/x
  3. Step 3: Cross multiply
    28,308.84x = 42,463.36 × 8,587.57
  4. Step 4: Simplify right side
    28,308.84x = 364,656,864.12
  5. Step 5: Solve for x
    x = 364,656,864.12/28,308.84
  6. Step 6: Final answer
    x = 12,881.38

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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.