Home / 20,535.84-30,803.76-11,776.32

Finding the Fourth Proportional to 20,535.84, 30,803.76 and 11,776.32

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Solution

The fourth proportional to 20,535.84, 30,803.76 and 11,776.32 is: 17,664.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,535.84 : 30,803.76 = 11,776.32 : x
  2. Step 2: Convert to fraction form
    20,535.84/30,803.76 = 11,776.32/x
  3. Step 3: Cross multiply
    20,535.84x = 30,803.76 × 11,776.32
  4. Step 4: Simplify right side
    20,535.84x = 362,754,934.96
  5. Step 5: Solve for x
    x = 362,754,934.96/20,535.84
  6. Step 6: Final answer
    x = 17,664.48

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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.