Home / 36,128.16-54,209.52-12,765.60

Finding the Fourth Proportional to 36,128.16, 54,209.52 and 12,765.60

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Solution

The fourth proportional to 36,128.16, 54,209.52 and 12,765.60 is: 19,154.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,128.16 : 54,209.52 = 12,765.60 : x
  2. Step 2: Convert to fraction form
    36,128.16/54,209.52 = 12,765.60/x
  3. Step 3: Cross multiply
    36,128.16x = 54,209.52 × 12,765.60
  4. Step 4: Simplify right side
    36,128.16x = 692,017,048.51
  5. Step 5: Solve for x
    x = 692,017,048.51/36,128.16
  6. Step 6: Final answer
    x = 19,154.51

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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.