Home / 28,409.19-42,613.75-7,632.69

Finding the Fourth Proportional to 28,409.19, 42,613.75 and 7,632.69

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Solution

The fourth proportional to 28,409.19, 42,613.75 and 7,632.69 is: 11,449.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,409.19 : 42,613.75 = 7,632.69 : x
  2. Step 2: Convert to fraction form
    28,409.19/42,613.75 = 7,632.69/x
  3. Step 3: Cross multiply
    28,409.19x = 42,613.75 × 7,632.69
  4. Step 4: Simplify right side
    28,409.19x = 325,257,543.49
  5. Step 5: Solve for x
    x = 325,257,543.49/28,409.19
  6. Step 6: Final answer
    x = 11,449.03

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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.