Home / 21,560.04-29,752.52-11,999.81

Finding the Fourth Proportional to 21,560.04, 29,752.52 and 11,999.81

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Solution

The fourth proportional to 21,560.04, 29,752.52 and 11,999.81 is: 16,559.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,560.04 : 29,752.52 = 11,999.81 : x
  2. Step 2: Convert to fraction form
    21,560.04/29,752.52 = 11,999.81/x
  3. Step 3: Cross multiply
    21,560.04x = 29,752.52 × 11,999.81
  4. Step 4: Simplify right side
    21,560.04x = 357,024,601.40
  5. Step 5: Solve for x
    x = 357,024,601.40/21,560.04
  6. Step 6: Final answer
    x = 16,559.55

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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.