Home / 28,293.12-42,436.44-7,518.24

Finding the Fourth Proportional to 28,293.12, 42,436.44 and 7,518.24

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Solution

The fourth proportional to 28,293.12, 42,436.44 and 7,518.24 is: 11,276.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,293.12 : 42,436.44 = 7,518.24 : x
  2. Step 2: Convert to fraction form
    28,293.12/42,436.44 = 7,518.24/x
  3. Step 3: Cross multiply
    28,293.12x = 42,436.44 × 7,518.24
  4. Step 4: Simplify right side
    28,293.12x = 319,047,340.67
  5. Step 5: Solve for x
    x = 319,047,340.67/28,293.12
  6. Step 6: Final answer
    x = 11,276.50

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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.