Home / 36,424.32-54,638.40-10,128.96

Finding the Fourth Proportional to 36,424.32, 54,638.40 and 10,128.96

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Solution

The fourth proportional to 36,424.32, 54,638.40 and 10,128.96 is: 15,193.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,424.32 : 54,638.40 = 10,128.96 : x
  2. Step 2: Convert to fraction form
    36,424.32/54,638.40 = 10,128.96/x
  3. Step 3: Cross multiply
    36,424.32x = 54,638.40 × 10,128.96
  4. Step 4: Simplify right side
    36,424.32x = 553,430,168.06
  5. Step 5: Solve for x
    x = 553,430,168.06/36,424.32
  6. Step 6: Final answer
    x = 15,193.97

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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.