Home / 19,930.23-27,503.20-11,437.30

Finding the Fourth Proportional to 19,930.23, 27,503.20 and 11,437.30

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Solution

The fourth proportional to 19,930.23, 27,503.20 and 11,437.30 is: 15,783.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,930.23 : 27,503.20 = 11,437.30 : x
  2. Step 2: Convert to fraction form
    19,930.23/27,503.20 = 11,437.30/x
  3. Step 3: Cross multiply
    19,930.23x = 27,503.20 × 11,437.30
  4. Step 4: Simplify right side
    19,930.23x = 314,562,333.70
  5. Step 5: Solve for x
    x = 314,562,333.70/19,930.23
  6. Step 6: Final answer
    x = 15,783.18

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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.