Home / 30,934.18-42,689.28-16,787.03

Finding the Fourth Proportional to 30,934.18, 42,689.28 and 16,787.03

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Solution

The fourth proportional to 30,934.18, 42,689.28 and 16,787.03 is: 23,166.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,934.18 : 42,689.28 = 16,787.03 : x
  2. Step 2: Convert to fraction form
    30,934.18/42,689.28 = 16,787.03/x
  3. Step 3: Cross multiply
    30,934.18x = 42,689.28 × 16,787.03
  4. Step 4: Simplify right side
    30,934.18x = 716,626,224.04
  5. Step 5: Solve for x
    x = 716,626,224.04/30,934.18
  6. Step 6: Final answer
    x = 23,166.16

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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.