Home / 30,956.02-42,718.94-16,808.97

Finding the Fourth Proportional to 30,956.02, 42,718.94 and 16,808.97

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Solution

The fourth proportional to 30,956.02, 42,718.94 and 16,808.97 is: 23,196.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,956.02 : 42,718.94 = 16,808.97 : x
  2. Step 2: Convert to fraction form
    30,956.02/42,718.94 = 16,808.97/x
  3. Step 3: Cross multiply
    30,956.02x = 42,718.94 × 16,808.97
  4. Step 4: Simplify right side
    30,956.02x = 718,061,083.25
  5. Step 5: Solve for x
    x = 718,061,083.25/30,956.02
  6. Step 6: Final answer
    x = 23,196.17

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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.