Home / 20,726.70-31,053.60-17,008.80

Finding the Fourth Proportional to 20,726.70, 31,053.60 and 17,008.80

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Solution

The fourth proportional to 20,726.70, 31,053.60 and 17,008.80 is: 25,483.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,726.70 : 31,053.60 = 17,008.80 : x
  2. Step 2: Convert to fraction form
    20,726.70/31,053.60 = 17,008.80/x
  3. Step 3: Cross multiply
    20,726.70x = 31,053.60 × 17,008.80
  4. Step 4: Simplify right side
    20,726.70x = 528,184,471.68
  5. Step 5: Solve for x
    x = 528,184,471.68/20,726.70
  6. Step 6: Final answer
    x = 25,483.29

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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.