Home / 28,356.54-42,534.80-7,580.04

Finding the Fourth Proportional to 28,356.54, 42,534.80 and 7,580.04

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Solution

The fourth proportional to 28,356.54, 42,534.80 and 7,580.04 is: 11,370.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,356.54 : 42,534.80 = 7,580.04 : x
  2. Step 2: Convert to fraction form
    28,356.54/42,534.80 = 7,580.04/x
  3. Step 3: Cross multiply
    28,356.54x = 42,534.80 × 7,580.04
  4. Step 4: Simplify right side
    28,356.54x = 322,415,234.82
  5. Step 5: Solve for x
    x = 322,415,234.82/28,356.54
  6. Step 6: Final answer
    x = 11,370.05

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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.