Home / 19,540.08-29,309.70-4,749.07

Finding the Fourth Proportional to 19,540.08, 29,309.70 and 4,749.07

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Solution

The fourth proportional to 19,540.08, 29,309.70 and 4,749.07 is: 7,123.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,540.08 : 29,309.70 = 4,749.07 : x
  2. Step 2: Convert to fraction form
    19,540.08/29,309.70 = 4,749.07/x
  3. Step 3: Cross multiply
    19,540.08x = 29,309.70 × 4,749.07
  4. Step 4: Simplify right side
    19,540.08x = 139,193,816.98
  5. Step 5: Solve for x
    x = 139,193,816.98/19,540.08
  6. Step 6: Final answer
    x = 7,123.50

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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.