Home / 30,934.29-42,689.31-16,787.14

Finding the Fourth Proportional to 30,934.29, 42,689.31 and 16,787.14

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Solution

The fourth proportional to 30,934.29, 42,689.31 and 16,787.14 is: 23,166.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,934.29 : 42,689.31 = 16,787.14 : x
  2. Step 2: Convert to fraction form
    30,934.29/42,689.31 = 16,787.14/x
  3. Step 3: Cross multiply
    30,934.29x = 42,689.31 × 16,787.14
  4. Step 4: Simplify right side
    30,934.29x = 716,631,423.47
  5. Step 5: Solve for x
    x = 716,631,423.47/30,934.29
  6. Step 6: Final answer
    x = 23,166.25

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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.