Home / 20,887.67-31,295.03-17,400.08

Finding the Fourth Proportional to 20,887.67, 31,295.03 and 17,400.08

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Solution

The fourth proportional to 20,887.67, 31,295.03 and 17,400.08 is: 26,069.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,887.67 : 31,295.03 = 17,400.08 : x
  2. Step 2: Convert to fraction form
    20,887.67/31,295.03 = 17,400.08/x
  3. Step 3: Cross multiply
    20,887.67x = 31,295.03 × 17,400.08
  4. Step 4: Simplify right side
    20,887.67x = 544,536,025.60
  5. Step 5: Solve for x
    x = 544,536,025.60/20,887.67
  6. Step 6: Final answer
    x = 26,069.74

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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.