Home / 35,487.86-48,971.58-20,370.02

Finding the Fourth Proportional to 35,487.86, 48,971.58 and 20,370.02

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Solution

The fourth proportional to 35,487.86, 48,971.58 and 20,370.02 is: 28,109.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,487.86 : 48,971.58 = 20,370.02 : x
  2. Step 2: Convert to fraction form
    35,487.86/48,971.58 = 20,370.02/x
  3. Step 3: Cross multiply
    35,487.86x = 48,971.58 × 20,370.02
  4. Step 4: Simplify right side
    35,487.86x = 997,552,064.03
  5. Step 5: Solve for x
    x = 997,552,064.03/35,487.86
  6. Step 6: Final answer
    x = 28,109.67

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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.