Home / 28,525.76-42,788.80-18,727.04

Finding the Fourth Proportional to 28,525.76, 42,788.80 and 18,727.04

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Solution

The fourth proportional to 28,525.76, 42,788.80 and 18,727.04 is: 28,090.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,525.76 : 42,788.80 = 18,727.04 : x
  2. Step 2: Convert to fraction form
    28,525.76/42,788.80 = 18,727.04/x
  3. Step 3: Cross multiply
    28,525.76x = 42,788.80 × 18,727.04
  4. Step 4: Simplify right side
    28,525.76x = 801,307,569.15
  5. Step 5: Solve for x
    x = 801,307,569.15/28,525.76
  6. Step 6: Final answer
    x = 28,090.67

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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.