Home / 28,502.33-39,323.63-18,443.50

Finding the Fourth Proportional to 28,502.33, 39,323.63 and 18,443.50

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Solution

The fourth proportional to 28,502.33, 39,323.63 and 18,443.50 is: 25,445.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,502.33 : 39,323.63 = 18,443.50 : x
  2. Step 2: Convert to fraction form
    28,502.33/39,323.63 = 18,443.50/x
  3. Step 3: Cross multiply
    28,502.33x = 39,323.63 × 18,443.50
  4. Step 4: Simplify right side
    28,502.33x = 725,265,213.96
  5. Step 5: Solve for x
    x = 725,265,213.96/28,502.33
  6. Step 6: Final answer
    x = 25,445.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.