Home / 38,172.55-52,672.37-21,818.58

Finding the Fourth Proportional to 38,172.55, 52,672.37 and 21,818.58

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Solution

The fourth proportional to 38,172.55, 52,672.37 and 21,818.58 is: 30,106.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,172.55 : 52,672.37 = 21,818.58 : x
  2. Step 2: Convert to fraction form
    38,172.55/52,672.37 = 21,818.58/x
  3. Step 3: Cross multiply
    38,172.55x = 52,672.37 × 21,818.58
  4. Step 4: Simplify right side
    38,172.55x = 1,149,235,946.18
  5. Step 5: Solve for x
    x = 1,149,235,946.18/38,172.55
  6. Step 6: Final answer
    x = 30,106.34

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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.