Home / 20,353.40-30,530.50-9,252.34

Finding the Fourth Proportional to 20,353.40, 30,530.50 and 9,252.34

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Solution

The fourth proportional to 20,353.40, 30,530.50 and 9,252.34 is: 13,878.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,353.40 : 30,530.50 = 9,252.34 : x
  2. Step 2: Convert to fraction form
    20,353.40/30,530.50 = 9,252.34/x
  3. Step 3: Cross multiply
    20,353.40x = 30,530.50 × 9,252.34
  4. Step 4: Simplify right side
    20,353.40x = 282,478,566.37
  5. Step 5: Solve for x
    x = 282,478,566.37/20,353.40
  6. Step 6: Final answer
    x = 13,878.69

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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.