Home / 21,617.77-32,430.01-9,137.85

Finding the Fourth Proportional to 21,617.77, 32,430.01 and 9,137.85

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Solution

The fourth proportional to 21,617.77, 32,430.01 and 9,137.85 is: 13,708.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,617.77 : 32,430.01 = 9,137.85 : x
  2. Step 2: Convert to fraction form
    21,617.77/32,430.01 = 9,137.85/x
  3. Step 3: Cross multiply
    21,617.77x = 32,430.01 × 9,137.85
  4. Step 4: Simplify right side
    21,617.77x = 296,340,566.88
  5. Step 5: Solve for x
    x = 296,340,566.88/21,617.77
  6. Step 6: Final answer
    x = 13,708.19

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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.