Home / 21,580.08-29,784.96-12,632.28

Finding the Fourth Proportional to 21,580.08, 29,784.96 and 12,632.28

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Solution

The fourth proportional to 21,580.08, 29,784.96 and 12,632.28 is: 17,435.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,580.08 : 29,784.96 = 12,632.28 : x
  2. Step 2: Convert to fraction form
    21,580.08/29,784.96 = 12,632.28/x
  3. Step 3: Cross multiply
    21,580.08x = 29,784.96 × 12,632.28
  4. Step 4: Simplify right side
    21,580.08x = 376,251,954.51
  5. Step 5: Solve for x
    x = 376,251,954.51/21,580.08
  6. Step 6: Final answer
    x = 17,435.15

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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.