Home / 26,215.02-39,289.71-20,646.38

Finding the Fourth Proportional to 26,215.02, 39,289.71 and 20,646.38

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Solution

The fourth proportional to 26,215.02, 39,289.71 and 20,646.38 is: 30,943.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,215.02 : 39,289.71 = 20,646.38 : x
  2. Step 2: Convert to fraction form
    26,215.02/39,289.71 = 20,646.38/x
  3. Step 3: Cross multiply
    26,215.02x = 39,289.71 × 20,646.38
  4. Step 4: Simplify right side
    26,215.02x = 811,190,086.30
  5. Step 5: Solve for x
    x = 811,190,086.30/26,215.02
  6. Step 6: Final answer
    x = 30,943.71

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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.