Home / 28,012.64-42,004.22-8,288.32

Finding the Fourth Proportional to 28,012.64, 42,004.22 and 8,288.32

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Solution

The fourth proportional to 28,012.64, 42,004.22 and 8,288.32 is: 12,428.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,012.64 : 42,004.22 = 8,288.32 : x
  2. Step 2: Convert to fraction form
    28,012.64/42,004.22 = 8,288.32/x
  3. Step 3: Cross multiply
    28,012.64x = 42,004.22 × 8,288.32
  4. Step 4: Simplify right side
    28,012.64x = 348,144,416.71
  5. Step 5: Solve for x
    x = 348,144,416.71/28,012.64
  6. Step 6: Final answer
    x = 12,428.12

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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.