Home / 21,353.44-29,465.98-12,398.08

Finding the Fourth Proportional to 21,353.44, 29,465.98 and 12,398.08

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Solution

The fourth proportional to 21,353.44, 29,465.98 and 12,398.08 is: 17,108.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,353.44 : 29,465.98 = 12,398.08 : x
  2. Step 2: Convert to fraction form
    21,353.44/29,465.98 = 12,398.08/x
  3. Step 3: Cross multiply
    21,353.44x = 29,465.98 × 12,398.08
  4. Step 4: Simplify right side
    21,353.44x = 365,321,577.32
  5. Step 5: Solve for x
    x = 365,321,577.32/21,353.44
  6. Step 6: Final answer
    x = 17,108.32

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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.