Home / 21,498.32-29,667.66-12,066.90

Finding the Fourth Proportional to 21,498.32, 29,667.66 and 12,066.90

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Solution

The fourth proportional to 21,498.32, 29,667.66 and 12,066.90 is: 16,652.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,498.32 : 29,667.66 = 12,066.90 : x
  2. Step 2: Convert to fraction form
    21,498.32/29,667.66 = 12,066.90/x
  3. Step 3: Cross multiply
    21,498.32x = 29,667.66 × 12,066.90
  4. Step 4: Simplify right side
    21,498.32x = 357,996,686.45
  5. Step 5: Solve for x
    x = 357,996,686.45/21,498.32
  6. Step 6: Final answer
    x = 16,652.31

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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.