Home / 30,563.80-42,178.02-17,135.06

Finding the Fourth Proportional to 30,563.80, 42,178.02 and 17,135.06

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Solution

The fourth proportional to 30,563.80, 42,178.02 and 17,135.06 is: 23,646.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,563.80 : 42,178.02 = 17,135.06 : x
  2. Step 2: Convert to fraction form
    30,563.80/42,178.02 = 17,135.06/x
  3. Step 3: Cross multiply
    30,563.80x = 42,178.02 × 17,135.06
  4. Step 4: Simplify right side
    30,563.80x = 722,722,903.38
  5. Step 5: Solve for x
    x = 722,722,903.38/30,563.80
  6. Step 6: Final answer
    x = 23,646.37

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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.