Home / 27,137.85-40,636.67-18,730.31

Finding the Fourth Proportional to 27,137.85, 40,636.67 and 18,730.31

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Solution

The fourth proportional to 27,137.85, 40,636.67 and 18,730.31 is: 28,047.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,137.85 : 40,636.67 = 18,730.31 : x
  2. Step 2: Convert to fraction form
    27,137.85/40,636.67 = 18,730.31/x
  3. Step 3: Cross multiply
    27,137.85x = 40,636.67 × 18,730.31
  4. Step 4: Simplify right side
    27,137.85x = 761,137,426.47
  5. Step 5: Solve for x
    x = 761,137,426.47/27,137.85
  6. Step 6: Final answer
    x = 28,047.08

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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.