Home / 28,238.02-42,356.31-7,461.70

Finding the Fourth Proportional to 28,238.02, 42,356.31 and 7,461.70

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Solution

The fourth proportional to 28,238.02, 42,356.31 and 7,461.70 is: 11,192.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,238.02 : 42,356.31 = 7,461.70 : x
  2. Step 2: Convert to fraction form
    28,238.02/42,356.31 = 7,461.70/x
  3. Step 3: Cross multiply
    28,238.02x = 42,356.31 × 7,461.70
  4. Step 4: Simplify right side
    28,238.02x = 316,050,078.33
  5. Step 5: Solve for x
    x = 316,050,078.33/28,238.02
  6. Step 6: Final answer
    x = 11,192.36

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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.