Home / 30,935.19-42,690.55-16,788.03

Finding the Fourth Proportional to 30,935.19, 42,690.55 and 16,788.03

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Solution

The fourth proportional to 30,935.19, 42,690.55 and 16,788.03 is: 23,167.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,935.19 : 42,690.55 = 16,788.03 : x
  2. Step 2: Convert to fraction form
    30,935.19/42,690.55 = 16,788.03/x
  3. Step 3: Cross multiply
    30,935.19x = 42,690.55 × 16,788.03
  4. Step 4: Simplify right side
    30,935.19x = 716,690,276.09
  5. Step 5: Solve for x
    x = 716,690,276.09/30,935.19
  6. Step 6: Final answer
    x = 23,167.48

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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.