Home / 26,020.43-39,030.84-8,490.31

Finding the Fourth Proportional to 26,020.43, 39,030.84 and 8,490.31

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Solution

The fourth proportional to 26,020.43, 39,030.84 and 8,490.31 is: 12,735.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,020.43 : 39,030.84 = 8,490.31 : x
  2. Step 2: Convert to fraction form
    26,020.43/39,030.84 = 8,490.31/x
  3. Step 3: Cross multiply
    26,020.43x = 39,030.84 × 8,490.31
  4. Step 4: Simplify right side
    26,020.43x = 331,383,931.16
  5. Step 5: Solve for x
    x = 331,383,931.16/26,020.43
  6. Step 6: Final answer
    x = 12,735.53

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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.