Home / 37,805.47-52,172.67-20,811.45

Finding the Fourth Proportional to 37,805.47, 52,172.67 and 20,811.45

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Solution

The fourth proportional to 37,805.47, 52,172.67 and 20,811.45 is: 28,720.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,805.47 : 52,172.67 = 20,811.45 : x
  2. Step 2: Convert to fraction form
    37,805.47/52,172.67 = 20,811.45/x
  3. Step 3: Cross multiply
    37,805.47x = 52,172.67 × 20,811.45
  4. Step 4: Simplify right side
    37,805.47x = 1,085,788,913.07
  5. Step 5: Solve for x
    x = 1,085,788,913.07/37,805.47
  6. Step 6: Final answer
    x = 28,720.42

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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.