Home / 21,594.13-29,807.35-12,644.51

Finding the Fourth Proportional to 21,594.13, 29,807.35 and 12,644.51

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Solution

The fourth proportional to 21,594.13, 29,807.35 and 12,644.51 is: 17,453.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,594.13 : 29,807.35 = 12,644.51 : x
  2. Step 2: Convert to fraction form
    21,594.13/29,807.35 = 12,644.51/x
  3. Step 3: Cross multiply
    21,594.13x = 29,807.35 × 12,644.51
  4. Step 4: Simplify right side
    21,594.13x = 376,899,186.11
  5. Step 5: Solve for x
    x = 376,899,186.11/21,594.13
  6. Step 6: Final answer
    x = 17,453.78

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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.