Home / 20,235.04-30,306.72-10,858.72

Finding the Fourth Proportional to 20,235.04, 30,306.72 and 10,858.72

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Solution

The fourth proportional to 20,235.04, 30,306.72 and 10,858.72 is: 16,263.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,235.04 : 30,306.72 = 10,858.72 : x
  2. Step 2: Convert to fraction form
    20,235.04/30,306.72 = 10,858.72/x
  3. Step 3: Cross multiply
    20,235.04x = 30,306.72 × 10,858.72
  4. Step 4: Simplify right side
    20,235.04x = 329,092,186.60
  5. Step 5: Solve for x
    x = 329,092,186.60/20,235.04
  6. Step 6: Final answer
    x = 16,263.48

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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.