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Finding the Fourth Proportional to 43,130.58, 64,657.39 and 16,829.20

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Solution

The fourth proportional to 43,130.58, 64,657.39 and 16,829.20 is: 25,228.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,130.58 : 64,657.39 = 16,829.20 : x
  2. Step 2: Convert to fraction form
    43,130.58/64,657.39 = 16,829.20/x
  3. Step 3: Cross multiply
    43,130.58x = 64,657.39 × 16,829.20
  4. Step 4: Simplify right side
    43,130.58x = 1,088,132,147.79
  5. Step 5: Solve for x
    x = 1,088,132,147.79/43,130.58
  6. Step 6: Final answer
    x = 25,228.79

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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.