Home / 21,234.77-29,260.81-16,425.51

Finding the Fourth Proportional to 21,234.77, 29,260.81 and 16,425.51

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Solution

The fourth proportional to 21,234.77, 29,260.81 and 16,425.51 is: 22,633.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,234.77 : 29,260.81 = 16,425.51 : x
  2. Step 2: Convert to fraction form
    21,234.77/29,260.81 = 16,425.51/x
  3. Step 3: Cross multiply
    21,234.77x = 29,260.81 × 16,425.51
  4. Step 4: Simplify right side
    21,234.77x = 480,623,638.07
  5. Step 5: Solve for x
    x = 480,623,638.07/21,234.77
  6. Step 6: Final answer
    x = 22,633.81

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Half scale
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Double scale
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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.