Home / 21,572.75-29,769.59-12,012.98

Finding the Fourth Proportional to 21,572.75, 29,769.59 and 12,012.98

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Solution

The fourth proportional to 21,572.75, 29,769.59 and 12,012.98 is: 16,577.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,572.75 : 29,769.59 = 12,012.98 : x
  2. Step 2: Convert to fraction form
    21,572.75/29,769.59 = 12,012.98/x
  3. Step 3: Cross multiply
    21,572.75x = 29,769.59 × 12,012.98
  4. Step 4: Simplify right side
    21,572.75x = 357,621,537.92
  5. Step 5: Solve for x
    x = 357,621,537.92/21,572.75
  6. Step 6: Final answer
    x = 16,577.46

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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.