Home / 23,415.90-35,111.70-8,617.20

Finding the Fourth Proportional to 23,415.90, 35,111.70 and 8,617.20

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Solution

The fourth proportional to 23,415.90, 35,111.70 and 8,617.20 is: 12,921.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,415.90 : 35,111.70 = 8,617.20 : x
  2. Step 2: Convert to fraction form
    23,415.90/35,111.70 = 8,617.20/x
  3. Step 3: Cross multiply
    23,415.90x = 35,111.70 × 8,617.20
  4. Step 4: Simplify right side
    23,415.90x = 302,564,541.24
  5. Step 5: Solve for x
    x = 302,564,541.24/23,415.90
  6. Step 6: Final answer
    x = 12,921.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.