Home / 30,690.02-42,353.49-17,261.90

Finding the Fourth Proportional to 30,690.02, 42,353.49 and 17,261.90

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Solution

The fourth proportional to 30,690.02, 42,353.49 and 17,261.90 is: 23,822.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,690.02 : 42,353.49 = 17,261.90 : x
  2. Step 2: Convert to fraction form
    30,690.02/42,353.49 = 17,261.90/x
  3. Step 3: Cross multiply
    30,690.02x = 42,353.49 × 17,261.90
  4. Step 4: Simplify right side
    30,690.02x = 731,101,709.03
  5. Step 5: Solve for x
    x = 731,101,709.03/30,690.02
  6. Step 6: Final answer
    x = 23,822.13

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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.