Home / 28,436.08-42,658.90-8,709.88

Finding the Fourth Proportional to 28,436.08, 42,658.90 and 8,709.88

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Solution

The fourth proportional to 28,436.08, 42,658.90 and 8,709.88 is: 13,066.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,436.08 : 42,658.90 = 8,709.88 : x
  2. Step 2: Convert to fraction form
    28,436.08/42,658.90 = 8,709.88/x
  3. Step 3: Cross multiply
    28,436.08x = 42,658.90 × 8,709.88
  4. Step 4: Simplify right side
    28,436.08x = 371,553,899.93
  5. Step 5: Solve for x
    x = 371,553,899.93/28,436.08
  6. Step 6: Final answer
    x = 13,066.28

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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.