Home / 29,336.45-40,430.07-20,838.89

Finding the Fourth Proportional to 29,336.45, 40,430.07 and 20,838.89

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Solution

The fourth proportional to 29,336.45, 40,430.07 and 20,838.89 is: 28,719.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,336.45 : 40,430.07 = 20,838.89 : x
  2. Step 2: Convert to fraction form
    29,336.45/40,430.07 = 20,838.89/x
  3. Step 3: Cross multiply
    29,336.45x = 40,430.07 × 20,838.89
  4. Step 4: Simplify right side
    29,336.45x = 842,517,579.27
  5. Step 5: Solve for x
    x = 842,517,579.27/29,336.45
  6. Step 6: Final answer
    x = 28,719.14

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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.