Home / 20,482.26-28,223.93-15,702.29

Finding the Fourth Proportional to 20,482.26, 28,223.93 and 15,702.29

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Solution

The fourth proportional to 20,482.26, 28,223.93 and 15,702.29 is: 21,637.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,482.26 : 28,223.93 = 15,702.29 : x
  2. Step 2: Convert to fraction form
    20,482.26/28,223.93 = 15,702.29/x
  3. Step 3: Cross multiply
    20,482.26x = 28,223.93 × 15,702.29
  4. Step 4: Simplify right side
    20,482.26x = 443,180,333.80
  5. Step 5: Solve for x
    x = 443,180,333.80/20,482.26
  6. Step 6: Final answer
    x = 21,637.28

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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.