Home / 40,688.87-61,042.82-12,607.45

Finding the Fourth Proportional to 40,688.87, 61,042.82 and 12,607.45

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Solution

The fourth proportional to 40,688.87, 61,042.82 and 12,607.45 is: 18,914.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,688.87 : 61,042.82 = 12,607.45 : x
  2. Step 2: Convert to fraction form
    40,688.87/61,042.82 = 12,607.45/x
  3. Step 3: Cross multiply
    40,688.87x = 61,042.82 × 12,607.45
  4. Step 4: Simplify right side
    40,688.87x = 769,594,085.36
  5. Step 5: Solve for x
    x = 769,594,085.36/40,688.87
  6. Step 6: Final answer
    x = 18,914.12

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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.