Home / 21,017.82-29,003.43-12,064.74

Finding the Fourth Proportional to 21,017.82, 29,003.43 and 12,064.74

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Solution

The fourth proportional to 21,017.82, 29,003.43 and 12,064.74 is: 16,648.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,017.82 : 29,003.43 = 12,064.74 : x
  2. Step 2: Convert to fraction form
    21,017.82/29,003.43 = 12,064.74/x
  3. Step 3: Cross multiply
    21,017.82x = 29,003.43 × 12,064.74
  4. Step 4: Simplify right side
    21,017.82x = 349,918,842.06
  5. Step 5: Solve for x
    x = 349,918,842.06/21,017.82
  6. Step 6: Final answer
    x = 16,648.67

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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.