Home / 19,335.96-29,016.90-12,415.32

Finding the Fourth Proportional to 19,335.96, 29,016.90 and 12,415.32

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Solution

The fourth proportional to 19,335.96, 29,016.90 and 12,415.32 is: 18,631.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,335.96 : 29,016.90 = 12,415.32 : x
  2. Step 2: Convert to fraction form
    19,335.96/29,016.90 = 12,415.32/x
  3. Step 3: Cross multiply
    19,335.96x = 29,016.90 × 12,415.32
  4. Step 4: Simplify right side
    19,335.96x = 360,254,098.91
  5. Step 5: Solve for x
    x = 360,254,098.91/19,335.96
  6. Step 6: Final answer
    x = 18,631.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.