Home / 40,955.64-61,433.43-12,878.18

Finding the Fourth Proportional to 40,955.64, 61,433.43 and 12,878.18

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Solution

The fourth proportional to 40,955.64, 61,433.43 and 12,878.18 is: 19,317.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,955.64 : 61,433.43 = 12,878.18 : x
  2. Step 2: Convert to fraction form
    40,955.64/61,433.43 = 12,878.18/x
  3. Step 3: Cross multiply
    40,955.64x = 61,433.43 × 12,878.18
  4. Step 4: Simplify right side
    40,955.64x = 791,150,462.39
  5. Step 5: Solve for x
    x = 791,150,462.39/40,955.64
  6. Step 6: Final answer
    x = 19,317.25

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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.