Home / 42,795.12-64,197.48-11,630.64

Finding the Fourth Proportional to 42,795.12, 64,197.48 and 11,630.64

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Solution

The fourth proportional to 42,795.12, 64,197.48 and 11,630.64 is: 17,447.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,795.12 : 64,197.48 = 11,630.64 : x
  2. Step 2: Convert to fraction form
    42,795.12/64,197.48 = 11,630.64/x
  3. Step 3: Cross multiply
    42,795.12x = 64,197.48 × 11,630.64
  4. Step 4: Simplify right side
    42,795.12x = 746,657,778.79
  5. Step 5: Solve for x
    x = 746,657,778.79/42,795.12
  6. Step 6: Final answer
    x = 17,447.26

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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.