Home / 20,554.08-30,803.52-10,672.80

Finding the Fourth Proportional to 20,554.08, 30,803.52 and 10,672.80

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Solution

The fourth proportional to 20,554.08, 30,803.52 and 10,672.80 is: 15,994.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,554.08 : 30,803.52 = 10,672.80 : x
  2. Step 2: Convert to fraction form
    20,554.08/30,803.52 = 10,672.80/x
  3. Step 3: Cross multiply
    20,554.08x = 30,803.52 × 10,672.80
  4. Step 4: Simplify right side
    20,554.08x = 328,759,808.26
  5. Step 5: Solve for x
    x = 328,759,808.26/20,554.08
  6. Step 6: Final answer
    x = 15,994.87

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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.