Home / 31,726.20-43,803.54-28,358.22

Finding the Fourth Proportional to 31,726.20, 43,803.54 and 28,358.22

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Solution

The fourth proportional to 31,726.20, 43,803.54 and 28,358.22 is: 39,153.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,726.20 : 43,803.54 = 28,358.22 : x
  2. Step 2: Convert to fraction form
    31,726.20/43,803.54 = 28,358.22/x
  3. Step 3: Cross multiply
    31,726.20x = 43,803.54 × 28,358.22
  4. Step 4: Simplify right side
    31,726.20x = 1,242,190,424.10
  5. Step 5: Solve for x
    x = 1,242,190,424.10/31,726.20
  6. Step 6: Final answer
    x = 39,153.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.