Home / 28,500.96-42,756.03-8,779.51

Finding the Fourth Proportional to 28,500.96, 42,756.03 and 8,779.51

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Solution

The fourth proportional to 28,500.96, 42,756.03 and 8,779.51 is: 13,170.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,500.96 : 42,756.03 = 8,779.51 : x
  2. Step 2: Convert to fraction form
    28,500.96/42,756.03 = 8,779.51/x
  3. Step 3: Cross multiply
    28,500.96x = 42,756.03 × 8,779.51
  4. Step 4: Simplify right side
    28,500.96x = 375,376,779.17
  5. Step 5: Solve for x
    x = 375,376,779.17/28,500.96
  6. Step 6: Final answer
    x = 13,170.67

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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.