Home / 31,630.36-43,561.02-30,941.44

Finding the Fourth Proportional to 31,630.36, 43,561.02 and 30,941.44

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Solution

The fourth proportional to 31,630.36, 43,561.02 and 30,941.44 is: 42,612.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,630.36 : 43,561.02 = 30,941.44 : x
  2. Step 2: Convert to fraction form
    31,630.36/43,561.02 = 30,941.44/x
  3. Step 3: Cross multiply
    31,630.36x = 43,561.02 × 30,941.44
  4. Step 4: Simplify right side
    31,630.36x = 1,347,840,686.67
  5. Step 5: Solve for x
    x = 1,347,840,686.67/31,630.36
  6. Step 6: Final answer
    x = 42,612.25

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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.