Home / 28,360.90-42,476.61-13,580.26

Finding the Fourth Proportional to 28,360.90, 42,476.61 and 13,580.26

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Solution

The fourth proportional to 28,360.90, 42,476.61 and 13,580.26 is: 20,339.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,360.90 : 42,476.61 = 13,580.26 : x
  2. Step 2: Convert to fraction form
    28,360.90/42,476.61 = 13,580.26/x
  3. Step 3: Cross multiply
    28,360.90x = 42,476.61 × 13,580.26
  4. Step 4: Simplify right side
    28,360.90x = 576,843,407.72
  5. Step 5: Solve for x
    x = 576,843,407.72/28,360.90
  6. Step 6: Final answer
    x = 20,339.39

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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.