Home / 28,406.16-42,615.33-8,684.07

Finding the Fourth Proportional to 28,406.16, 42,615.33 and 8,684.07

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Solution

The fourth proportional to 28,406.16, 42,615.33 and 8,684.07 is: 13,027.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,406.16 : 42,615.33 = 8,684.07 : x
  2. Step 2: Convert to fraction form
    28,406.16/42,615.33 = 8,684.07/x
  3. Step 3: Cross multiply
    28,406.16x = 42,615.33 × 8,684.07
  4. Step 4: Simplify right side
    28,406.16x = 370,074,508.79
  5. Step 5: Solve for x
    x = 370,074,508.79/28,406.16
  6. Step 6: Final answer
    x = 13,027.97

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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.