Home / 31,038.84-42,833.75-16,891.79

Finding the Fourth Proportional to 31,038.84, 42,833.75 and 16,891.79

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Solution

The fourth proportional to 31,038.84, 42,833.75 and 16,891.79 is: 23,310.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,038.84 : 42,833.75 = 16,891.79 : x
  2. Step 2: Convert to fraction form
    31,038.84/42,833.75 = 16,891.79/x
  3. Step 3: Cross multiply
    31,038.84x = 42,833.75 × 16,891.79
  4. Step 4: Simplify right side
    31,038.84x = 723,538,411.28
  5. Step 5: Solve for x
    x = 723,538,411.28/31,038.84
  6. Step 6: Final answer
    x = 23,310.74

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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.