Home / 13,430.45-20,139.60-6,031.10

Finding the Fourth Proportional to 13,430.45, 20,139.60 and 6,031.10

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Solution

The fourth proportional to 13,430.45, 20,139.60 and 6,031.10 is: 9,043.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,430.45 : 20,139.60 = 6,031.10 : x
  2. Step 2: Convert to fraction form
    13,430.45/20,139.60 = 6,031.10/x
  3. Step 3: Cross multiply
    13,430.45x = 20,139.60 × 6,031.10
  4. Step 4: Simplify right side
    13,430.45x = 121,463,941.56
  5. Step 5: Solve for x
    x = 121,463,941.56/13,430.45
  6. Step 6: Final answer
    x = 9,043.92

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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.