Home / 31,036.26-42,829.77-16,889.12

Finding the Fourth Proportional to 31,036.26, 42,829.77 and 16,889.12

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Solution

The fourth proportional to 31,036.26, 42,829.77 and 16,889.12 is: 23,306.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,036.26 : 42,829.77 = 16,889.12 : x
  2. Step 2: Convert to fraction form
    31,036.26/42,829.77 = 16,889.12/x
  3. Step 3: Cross multiply
    31,036.26x = 42,829.77 × 16,889.12
  4. Step 4: Simplify right side
    31,036.26x = 723,357,125.10
  5. Step 5: Solve for x
    x = 723,357,125.10/31,036.26
  6. Step 6: Final answer
    x = 23,306.84

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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.