Home / 43,309.20-59,778-28,239.24

Finding the Fourth Proportional to 43,309.20, 59,778 and 28,239.24

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Solution

The fourth proportional to 43,309.20, 59,778 and 28,239.24 is: 38,977.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,309.20 : 59,778 = 28,239.24 : x
  2. Step 2: Convert to fraction form
    43,309.20/59,778 = 28,239.24/x
  3. Step 3: Cross multiply
    43,309.20x = 59,778 × 28,239.24
  4. Step 4: Simplify right side
    43,309.20x = 1,688,085,288.72
  5. Step 5: Solve for x
    x = 1,688,085,288.72/43,309.20
  6. Step 6: Final answer
    x = 38,977.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.