Home / 31,510.51-43,458.02-18,932.83

Finding the Fourth Proportional to 31,510.51, 43,458.02 and 18,932.83

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Solution

The fourth proportional to 31,510.51, 43,458.02 and 18,932.83 is: 26,111.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,510.51 : 43,458.02 = 18,932.83 : x
  2. Step 2: Convert to fraction form
    31,510.51/43,458.02 = 18,932.83/x
  3. Step 3: Cross multiply
    31,510.51x = 43,458.02 × 18,932.83
  4. Step 4: Simplify right side
    31,510.51x = 822,783,172.49
  5. Step 5: Solve for x
    x = 822,783,172.49/31,510.51
  6. Step 6: Final answer
    x = 26,111.39

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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.