Home / 28,284.08-42,420.56-26,878.92

Finding the Fourth Proportional to 28,284.08, 42,420.56 and 26,878.92

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Solution

The fourth proportional to 28,284.08, 42,420.56 and 26,878.92 is: 40,313.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,284.08 : 42,420.56 = 26,878.92 : x
  2. Step 2: Convert to fraction form
    28,284.08/42,420.56 = 26,878.92/x
  3. Step 3: Cross multiply
    28,284.08x = 42,420.56 × 26,878.92
  4. Step 4: Simplify right side
    28,284.08x = 1,140,218,838.60
  5. Step 5: Solve for x
    x = 1,140,218,838.60/28,284.08
  6. Step 6: Final answer
    x = 40,313.10

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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.