Home / 31,376.20-43,257.12-26,880.64

Finding the Fourth Proportional to 31,376.20, 43,257.12 and 26,880.64

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Solution

The fourth proportional to 31,376.20, 43,257.12 and 26,880.64 is: 37,059.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,376.20 : 43,257.12 = 26,880.64 : x
  2. Step 2: Convert to fraction form
    31,376.20/43,257.12 = 26,880.64/x
  3. Step 3: Cross multiply
    31,376.20x = 43,257.12 × 26,880.64
  4. Step 4: Simplify right side
    31,376.20x = 1,162,779,070.16
  5. Step 5: Solve for x
    x = 1,162,779,070.16/31,376.20
  6. Step 6: Final answer
    x = 37,059.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.