Home / 40,494.90-55,858.91-31,528.20

Finding the Fourth Proportional to 40,494.90, 55,858.91 and 31,528.20

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Solution

The fourth proportional to 40,494.90, 55,858.91 and 31,528.20 is: 43,490.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,494.90 : 55,858.91 = 31,528.20 : x
  2. Step 2: Convert to fraction form
    40,494.90/55,858.91 = 31,528.20/x
  3. Step 3: Cross multiply
    40,494.90x = 55,858.91 × 31,528.20
  4. Step 4: Simplify right side
    40,494.90x = 1,761,130,728.62
  5. Step 5: Solve for x
    x = 1,761,130,728.62/40,494.90
  6. Step 6: Final answer
    x = 43,490.19

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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.