Home / 26,620.90-39,931.35-12,576.31

Finding the Fourth Proportional to 26,620.90, 39,931.35 and 12,576.31

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Solution

The fourth proportional to 26,620.90, 39,931.35 and 12,576.31 is: 18,864.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,620.90 : 39,931.35 = 12,576.31 : x
  2. Step 2: Convert to fraction form
    26,620.90/39,931.35 = 12,576.31/x
  3. Step 3: Cross multiply
    26,620.90x = 39,931.35 × 12,576.31
  4. Step 4: Simplify right side
    26,620.90x = 502,189,036.32
  5. Step 5: Solve for x
    x = 502,189,036.32/26,620.90
  6. Step 6: Final answer
    x = 18,864.47

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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.