Home / 21,424.77-32,143.72-9,588.51

Finding the Fourth Proportional to 21,424.77, 32,143.72 and 9,588.51

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Solution

The fourth proportional to 21,424.77, 32,143.72 and 9,588.51 is: 14,385.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,424.77 : 32,143.72 = 9,588.51 : x
  2. Step 2: Convert to fraction form
    21,424.77/32,143.72 = 9,588.51/x
  3. Step 3: Cross multiply
    21,424.77x = 32,143.72 × 9,588.51
  4. Step 4: Simplify right side
    21,424.77x = 308,210,380.66
  5. Step 5: Solve for x
    x = 308,210,380.66/21,424.77
  6. Step 6: Final answer
    x = 14,385.70

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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.