Home / 30,935.26-42,690.81-16,788.07

Finding the Fourth Proportional to 30,935.26, 42,690.81 and 16,788.07

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Solution

The fourth proportional to 30,935.26, 42,690.81 and 16,788.07 is: 23,167.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,935.26 : 42,690.81 = 16,788.07 : x
  2. Step 2: Convert to fraction form
    30,935.26/42,690.81 = 16,788.07/x
  3. Step 3: Cross multiply
    30,935.26x = 42,690.81 × 16,788.07
  4. Step 4: Simplify right side
    30,935.26x = 716,696,306.64
  5. Step 5: Solve for x
    x = 716,696,306.64/30,935.26
  6. Step 6: Final answer
    x = 23,167.62

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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.