Home / 35,475.36-48,958.50-20,372.40

Finding the Fourth Proportional to 35,475.36, 48,958.50 and 20,372.40

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Solution

The fourth proportional to 35,475.36, 48,958.50 and 20,372.40 is: 28,115.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,475.36 : 48,958.50 = 20,372.40 : x
  2. Step 2: Convert to fraction form
    35,475.36/48,958.50 = 20,372.40/x
  3. Step 3: Cross multiply
    35,475.36x = 48,958.50 × 20,372.40
  4. Step 4: Simplify right side
    35,475.36x = 997,402,145.40
  5. Step 5: Solve for x
    x = 997,402,145.40/35,475.36
  6. Step 6: Final answer
    x = 28,115.35

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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.