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Finding the Fourth Proportional to 28,064.08, 42,103.03 and 8,342.63

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Solution

The fourth proportional to 28,064.08, 42,103.03 and 8,342.63 is: 12,516.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,064.08 : 42,103.03 = 8,342.63 : x
  2. Step 2: Convert to fraction form
    28,064.08/42,103.03 = 8,342.63/x
  3. Step 3: Cross multiply
    28,064.08x = 42,103.03 × 8,342.63
  4. Step 4: Simplify right side
    28,064.08x = 351,250,001.17
  5. Step 5: Solve for x
    x = 351,250,001.17/28,064.08
  6. Step 6: Final answer
    x = 12,516.00

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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.