Home / 28,315.57-42,473.08-7,539.07

Finding the Fourth Proportional to 28,315.57, 42,473.08 and 7,539.07

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Solution

The fourth proportional to 28,315.57, 42,473.08 and 7,539.07 is: 11,308.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,315.57 : 42,473.08 = 7,539.07 : x
  2. Step 2: Convert to fraction form
    28,315.57/42,473.08 = 7,539.07/x
  3. Step 3: Cross multiply
    28,315.57x = 42,473.08 × 7,539.07
  4. Step 4: Simplify right side
    28,315.57x = 320,207,523.24
  5. Step 5: Solve for x
    x = 320,207,523.24/28,315.57
  6. Step 6: Final answer
    x = 11,308.53

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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.