Home / 30,892.13-42,630.85-17,280.02

Finding the Fourth Proportional to 30,892.13, 42,630.85 and 17,280.02

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Solution

The fourth proportional to 30,892.13, 42,630.85 and 17,280.02 is: 23,846.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,892.13 : 42,630.85 = 17,280.02 : x
  2. Step 2: Convert to fraction form
    30,892.13/42,630.85 = 17,280.02/x
  3. Step 3: Cross multiply
    30,892.13x = 42,630.85 × 17,280.02
  4. Step 4: Simplify right side
    30,892.13x = 736,661,684.26
  5. Step 5: Solve for x
    x = 736,661,684.26/30,892.13
  6. Step 6: Final answer
    x = 23,846.26

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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.