Home / 31,034.14-42,825.84-16,887

Finding the Fourth Proportional to 31,034.14, 42,825.84 and 16,887

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Solution

The fourth proportional to 31,034.14, 42,825.84 and 16,887 is: 23,303.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,034.14 : 42,825.84 = 16,887 : x
  2. Step 2: Convert to fraction form
    31,034.14/42,825.84 = 16,887/x
  3. Step 3: Cross multiply
    31,034.14x = 42,825.84 × 16,887
  4. Step 4: Simplify right side
    31,034.14x = 723,199,960.08
  5. Step 5: Solve for x
    x = 723,199,960.08/31,034.14
  6. Step 6: Final answer
    x = 23,303.37

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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.