Home / 26,308.42-39,448.77-17,990.80

Finding the Fourth Proportional to 26,308.42, 39,448.77 and 17,990.80

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Solution

The fourth proportional to 26,308.42, 39,448.77 and 17,990.80 is: 26,976.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,308.42 : 39,448.77 = 17,990.80 : x
  2. Step 2: Convert to fraction form
    26,308.42/39,448.77 = 17,990.80/x
  3. Step 3: Cross multiply
    26,308.42x = 39,448.77 × 17,990.80
  4. Step 4: Simplify right side
    26,308.42x = 709,714,931.32
  5. Step 5: Solve for x
    x = 709,714,931.32/26,308.42
  6. Step 6: Final answer
    x = 26,976.72

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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.