Home / 26,490.12-39,698.24-19,908.60

Finding the Fourth Proportional to 26,490.12, 39,698.24 and 19,908.60

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Solution

The fourth proportional to 26,490.12, 39,698.24 and 19,908.60 is: 29,835.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,490.12 : 39,698.24 = 19,908.60 : x
  2. Step 2: Convert to fraction form
    26,490.12/39,698.24 = 19,908.60/x
  3. Step 3: Cross multiply
    26,490.12x = 39,698.24 × 19,908.60
  4. Step 4: Simplify right side
    26,490.12x = 790,336,281.32
  5. Step 5: Solve for x
    x = 790,336,281.32/26,490.12
  6. Step 6: Final answer
    x = 29,835.13

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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.