Home / 31,021.83-42,810.46-16,874.69

Finding the Fourth Proportional to 31,021.83, 42,810.46 and 16,874.69

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Solution

The fourth proportional to 31,021.83, 42,810.46 and 16,874.69 is: 23,287.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,021.83 : 42,810.46 = 16,874.69 : x
  2. Step 2: Convert to fraction form
    31,021.83/42,810.46 = 16,874.69/x
  3. Step 3: Cross multiply
    31,021.83x = 42,810.46 × 16,874.69
  4. Step 4: Simplify right side
    31,021.83x = 722,412,985.02
  5. Step 5: Solve for x
    x = 722,412,985.02/31,021.83
  6. Step 6: Final answer
    x = 23,287.25

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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.