Home / 31,980.80-44,129.04-18,553.16

Finding the Fourth Proportional to 31,980.80, 44,129.04 and 18,553.16

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Solution

The fourth proportional to 31,980.80, 44,129.04 and 18,553.16 is: 25,600.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,980.80 : 44,129.04 = 18,553.16 : x
  2. Step 2: Convert to fraction form
    31,980.80/44,129.04 = 18,553.16/x
  3. Step 3: Cross multiply
    31,980.80x = 44,129.04 × 18,553.16
  4. Step 4: Simplify right side
    31,980.80x = 818,733,139.77
  5. Step 5: Solve for x
    x = 818,733,139.77/31,980.80
  6. Step 6: Final answer
    x = 25,600.77

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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.