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Finding the Fourth Proportional to 38,594.50, 53,260.41 and 20,930.50

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Solution

The fourth proportional to 38,594.50, 53,260.41 and 20,930.50 is: 28,884.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,594.50 : 53,260.41 = 20,930.50 : x
  2. Step 2: Convert to fraction form
    38,594.50/53,260.41 = 20,930.50/x
  3. Step 3: Cross multiply
    38,594.50x = 53,260.41 × 20,930.50
  4. Step 4: Simplify right side
    38,594.50x = 1,114,767,011.51
  5. Step 5: Solve for x
    x = 1,114,767,011.51/38,594.50
  6. Step 6: Final answer
    x = 28,884.09

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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.