Home / 29,006.40-40,014.60-18,930.18

Finding the Fourth Proportional to 29,006.40, 40,014.60 and 18,930.18

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Solution

The fourth proportional to 29,006.40, 40,014.60 and 18,930.18 is: 26,114.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,006.40 : 40,014.60 = 18,930.18 : x
  2. Step 2: Convert to fraction form
    29,006.40/40,014.60 = 18,930.18/x
  3. Step 3: Cross multiply
    29,006.40x = 40,014.60 × 18,930.18
  4. Step 4: Simplify right side
    29,006.40x = 757,483,580.63
  5. Step 5: Solve for x
    x = 757,483,580.63/29,006.40
  6. Step 6: Final answer
    x = 26,114.36

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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.