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Finding the Fourth Proportional to 28,677, 39,557.10 and 18,048.18

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Solution

The fourth proportional to 28,677, 39,557.10 and 18,048.18 is: 24,895.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,677 : 39,557.10 = 18,048.18 : x
  2. Step 2: Convert to fraction form
    28,677/39,557.10 = 18,048.18/x
  3. Step 3: Cross multiply
    28,677x = 39,557.10 × 18,048.18
  4. Step 4: Simplify right side
    28,677x = 713,933,661.08
  5. Step 5: Solve for x
    x = 713,933,661.08/28,677
  6. Step 6: Final answer
    x = 24,895.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.