Home / 28,296.32-42,451.02-8,305.02

Finding the Fourth Proportional to 28,296.32, 42,451.02 and 8,305.02

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Solution

The fourth proportional to 28,296.32, 42,451.02 and 8,305.02 is: 12,459.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,296.32 : 42,451.02 = 8,305.02 : x
  2. Step 2: Convert to fraction form
    28,296.32/42,451.02 = 8,305.02/x
  3. Step 3: Cross multiply
    28,296.32x = 42,451.02 × 8,305.02
  4. Step 4: Simplify right side
    28,296.32x = 352,556,570.12
  5. Step 5: Solve for x
    x = 352,556,570.12/28,296.32
  6. Step 6: Final answer
    x = 12,459.45

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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.