Home / 40,698.79-61,056.96-12,618.28

Finding the Fourth Proportional to 40,698.79, 61,056.96 and 12,618.28

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Solution

The fourth proportional to 40,698.79, 61,056.96 and 12,618.28 is: 18,930.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,698.79 : 61,056.96 = 12,618.28 : x
  2. Step 2: Convert to fraction form
    40,698.79/61,056.96 = 12,618.28/x
  3. Step 3: Cross multiply
    40,698.79x = 61,056.96 × 12,618.28
  4. Step 4: Simplify right side
    40,698.79x = 770,433,817.23
  5. Step 5: Solve for x
    x = 770,433,817.23/40,698.79
  6. Step 6: Final answer
    x = 18,930.14

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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.