Home / 28,283.12-42,421.44-7,508.24

Finding the Fourth Proportional to 28,283.12, 42,421.44 and 7,508.24

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Solution

The fourth proportional to 28,283.12, 42,421.44 and 7,508.24 is: 11,261.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,283.12 : 42,421.44 = 7,508.24 : x
  2. Step 2: Convert to fraction form
    28,283.12/42,421.44 = 7,508.24/x
  3. Step 3: Cross multiply
    28,283.12x = 42,421.44 × 7,508.24
  4. Step 4: Simplify right side
    28,283.12x = 318,510,352.67
  5. Step 5: Solve for x
    x = 318,510,352.67/28,283.12
  6. Step 6: Final answer
    x = 11,261.50

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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.