Home / 28,426.02-42,640.11-7,650.06

Finding the Fourth Proportional to 28,426.02, 42,640.11 and 7,650.06

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Solution

The fourth proportional to 28,426.02, 42,640.11 and 7,650.06 is: 11,475.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,426.02 : 42,640.11 = 7,650.06 : x
  2. Step 2: Convert to fraction form
    28,426.02/42,640.11 = 7,650.06/x
  3. Step 3: Cross multiply
    28,426.02x = 42,640.11 × 7,650.06
  4. Step 4: Simplify right side
    28,426.02x = 326,199,399.91
  5. Step 5: Solve for x
    x = 326,199,399.91/28,426.02
  6. Step 6: Final answer
    x = 11,475.38

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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.