Home / 28,041.12-42,057.23-9,319.59

Finding the Fourth Proportional to 28,041.12, 42,057.23 and 9,319.59

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Solution

The fourth proportional to 28,041.12, 42,057.23 and 9,319.59 is: 13,977.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,041.12 : 42,057.23 = 9,319.59 : x
  2. Step 2: Convert to fraction form
    28,041.12/42,057.23 = 9,319.59/x
  3. Step 3: Cross multiply
    28,041.12x = 42,057.23 × 9,319.59
  4. Step 4: Simplify right side
    28,041.12x = 391,956,093.54
  5. Step 5: Solve for x
    x = 391,956,093.54/28,041.12
  6. Step 6: Final answer
    x = 13,977.90

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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.