Home / 40,950.78-61,426.94-12,870.32

Finding the Fourth Proportional to 40,950.78, 61,426.94 and 12,870.32

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Solution

The fourth proportional to 40,950.78, 61,426.94 and 12,870.32 is: 19,305.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,950.78 : 61,426.94 = 12,870.32 : x
  2. Step 2: Convert to fraction form
    40,950.78/61,426.94 = 12,870.32/x
  3. Step 3: Cross multiply
    40,950.78x = 61,426.94 × 12,870.32
  4. Step 4: Simplify right side
    40,950.78x = 790,584,374.42
  5. Step 5: Solve for x
    x = 790,584,374.42/40,950.78
  6. Step 6: Final answer
    x = 19,305.72

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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.