Home / 30,935.04-42,690.39-16,787.88

Finding the Fourth Proportional to 30,935.04, 42,690.39 and 16,787.88

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Solution

The fourth proportional to 30,935.04, 42,690.39 and 16,787.88 is: 23,167.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,935.04 : 42,690.39 = 16,787.88 : x
  2. Step 2: Convert to fraction form
    30,935.04/42,690.39 = 16,787.88/x
  3. Step 3: Cross multiply
    30,935.04x = 42,690.39 × 16,787.88
  4. Step 4: Simplify right side
    30,935.04x = 716,681,296.02
  5. Step 5: Solve for x
    x = 716,681,296.02/30,935.04
  6. Step 6: Final answer
    x = 23,167.30

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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.