Home / 31,534.70-43,518.93-18,108.35

Finding the Fourth Proportional to 31,534.70, 43,518.93 and 18,108.35

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Solution

The fourth proportional to 31,534.70, 43,518.93 and 18,108.35 is: 24,990.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,534.70 : 43,518.93 = 18,108.35 : x
  2. Step 2: Convert to fraction form
    31,534.70/43,518.93 = 18,108.35/x
  3. Step 3: Cross multiply
    31,534.70x = 43,518.93 × 18,108.35
  4. Step 4: Simplify right side
    31,534.70x = 788,055,730.56
  5. Step 5: Solve for x
    x = 788,055,730.56/31,534.70
  6. Step 6: Final answer
    x = 24,990.11

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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.