Home / 38,985.40-58,481.80-10,905.46

Finding the Fourth Proportional to 38,985.40, 58,481.80 and 10,905.46

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Solution

The fourth proportional to 38,985.40, 58,481.80 and 10,905.46 is: 16,359.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,985.40 : 58,481.80 = 10,905.46 : x
  2. Step 2: Convert to fraction form
    38,985.40/58,481.80 = 10,905.46/x
  3. Step 3: Cross multiply
    38,985.40x = 58,481.80 × 10,905.46
  4. Step 4: Simplify right side
    38,985.40x = 637,770,930.63
  5. Step 5: Solve for x
    x = 637,770,930.63/38,985.40
  6. Step 6: Final answer
    x = 16,359.23

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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.