Home / 35,538.12-53,289.90-20,751.84

Finding the Fourth Proportional to 35,538.12, 53,289.90 and 20,751.84

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Solution

The fourth proportional to 35,538.12, 53,289.90 and 20,751.84 is: 31,117.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,538.12 : 53,289.90 = 20,751.84 : x
  2. Step 2: Convert to fraction form
    35,538.12/53,289.90 = 20,751.84/x
  3. Step 3: Cross multiply
    35,538.12x = 53,289.90 × 20,751.84
  4. Step 4: Simplify right side
    35,538.12x = 1,105,863,478.42
  5. Step 5: Solve for x
    x = 1,105,863,478.42/35,538.12
  6. Step 6: Final answer
    x = 31,117.67

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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.