Home / 22,779.45-31,423.01-13,346.19

Finding the Fourth Proportional to 22,779.45, 31,423.01 and 13,346.19

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Solution

The fourth proportional to 22,779.45, 31,423.01 and 13,346.19 is: 18,410.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,779.45 : 31,423.01 = 13,346.19 : x
  2. Step 2: Convert to fraction form
    22,779.45/31,423.01 = 13,346.19/x
  3. Step 3: Cross multiply
    22,779.45x = 31,423.01 × 13,346.19
  4. Step 4: Simplify right side
    22,779.45x = 419,377,395.10
  5. Step 5: Solve for x
    x = 419,377,395.10/22,779.45
  6. Step 6: Final answer
    x = 18,410.34

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Half scale
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Double scale
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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.