Home / 31,558.16-43,461.96-31,461.20

Finding the Fourth Proportional to 31,558.16, 43,461.96 and 31,461.20

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Solution

The fourth proportional to 31,558.16, 43,461.96 and 31,461.20 is: 43,328.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,558.16 : 43,461.96 = 31,461.20 : x
  2. Step 2: Convert to fraction form
    31,558.16/43,461.96 = 31,461.20/x
  3. Step 3: Cross multiply
    31,558.16x = 43,461.96 × 31,461.20
  4. Step 4: Simplify right side
    31,558.16x = 1,367,365,415.95
  5. Step 5: Solve for x
    x = 1,367,365,415.95/31,558.16
  6. Step 6: Final answer
    x = 43,328.43

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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.