Home / 28,500.98-42,740.52-11,868.86

Finding the Fourth Proportional to 28,500.98, 42,740.52 and 11,868.86

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Solution

The fourth proportional to 28,500.98, 42,740.52 and 11,868.86 is: 17,798.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,500.98 : 42,740.52 = 11,868.86 : x
  2. Step 2: Convert to fraction form
    28,500.98/42,740.52 = 11,868.86/x
  3. Step 3: Cross multiply
    28,500.98x = 42,740.52 × 11,868.86
  4. Step 4: Simplify right side
    28,500.98x = 507,281,248.21
  5. Step 5: Solve for x
    x = 507,281,248.21/28,500.98
  6. Step 6: Final answer
    x = 17,798.73

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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.