Home / 19,931.92-29,897.96-4,939.01

Finding the Fourth Proportional to 19,931.92, 29,897.96 and 4,939.01

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Solution

The fourth proportional to 19,931.92, 29,897.96 and 4,939.01 is: 7,408.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,931.92 : 29,897.96 = 4,939.01 : x
  2. Step 2: Convert to fraction form
    19,931.92/29,897.96 = 4,939.01/x
  3. Step 3: Cross multiply
    19,931.92x = 29,897.96 × 4,939.01
  4. Step 4: Simplify right side
    19,931.92x = 147,666,323.42
  5. Step 5: Solve for x
    x = 147,666,323.42/19,931.92
  6. Step 6: Final answer
    x = 7,408.53

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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.