Home / 30,517.02-42,111.78-17,088.06

Finding the Fourth Proportional to 30,517.02, 42,111.78 and 17,088.06

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Solution

The fourth proportional to 30,517.02, 42,111.78 and 17,088.06 is: 23,580.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,517.02 : 42,111.78 = 17,088.06 : x
  2. Step 2: Convert to fraction form
    30,517.02/42,111.78 = 17,088.06/x
  3. Step 3: Cross multiply
    30,517.02x = 42,111.78 × 17,088.06
  4. Step 4: Simplify right side
    30,517.02x = 719,608,623.35
  5. Step 5: Solve for x
    x = 719,608,623.35/30,517.02
  6. Step 6: Final answer
    x = 23,580.57

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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.