Home / 30,934.32-42,689.46-16,787.16

Finding the Fourth Proportional to 30,934.32, 42,689.46 and 16,787.16

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Solution

The fourth proportional to 30,934.32, 42,689.46 and 16,787.16 is: 23,166.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,934.32 : 42,689.46 = 16,787.16 : x
  2. Step 2: Convert to fraction form
    30,934.32/42,689.46 = 16,787.16/x
  3. Step 3: Cross multiply
    30,934.32x = 42,689.46 × 16,787.16
  4. Step 4: Simplify right side
    30,934.32x = 716,634,795.33
  5. Step 5: Solve for x
    x = 716,634,795.33/30,934.32
  6. Step 6: Final answer
    x = 23,166.33

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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.