Home / 28,128.92-42,199.86-10,599.08

Finding the Fourth Proportional to 28,128.92, 42,199.86 and 10,599.08

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Solution

The fourth proportional to 28,128.92, 42,199.86 and 10,599.08 is: 15,901.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,128.92 : 42,199.86 = 10,599.08 : x
  2. Step 2: Convert to fraction form
    28,128.92/42,199.86 = 10,599.08/x
  3. Step 3: Cross multiply
    28,128.92x = 42,199.86 × 10,599.08
  4. Step 4: Simplify right side
    28,128.92x = 447,279,692.13
  5. Step 5: Solve for x
    x = 447,279,692.13/28,128.92
  6. Step 6: Final answer
    x = 15,901.06

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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.