Home / 21,030.44-29,019.96-12,962.84

Finding the Fourth Proportional to 21,030.44, 29,019.96 and 12,962.84

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Solution

The fourth proportional to 21,030.44, 29,019.96 and 12,962.84 is: 17,887.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,030.44 : 29,019.96 = 12,962.84 : x
  2. Step 2: Convert to fraction form
    21,030.44/29,019.96 = 12,962.84/x
  3. Step 3: Cross multiply
    21,030.44x = 29,019.96 × 12,962.84
  4. Step 4: Simplify right side
    21,030.44x = 376,181,098.29
  5. Step 5: Solve for x
    x = 376,181,098.29/21,030.44
  6. Step 6: Final answer
    x = 17,887.46

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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.