Home / 43,293.20-64,939.80-28,518.80

Finding the Fourth Proportional to 43,293.20, 64,939.80 and 28,518.80

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Solution

The fourth proportional to 43,293.20, 64,939.80 and 28,518.80 is: 42,778.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,293.20 : 64,939.80 = 28,518.80 : x
  2. Step 2: Convert to fraction form
    43,293.20/64,939.80 = 28,518.80/x
  3. Step 3: Cross multiply
    43,293.20x = 64,939.80 × 28,518.80
  4. Step 4: Simplify right side
    43,293.20x = 1,852,005,168.24
  5. Step 5: Solve for x
    x = 1,852,005,168.24/43,293.20
  6. Step 6: Final answer
    x = 42,778.20

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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.