Home / 37,985.64-52,419.87-20,991.03

Finding the Fourth Proportional to 37,985.64, 52,419.87 and 20,991.03

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Solution

The fourth proportional to 37,985.64, 52,419.87 and 20,991.03 is: 28,967.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,985.64 : 52,419.87 = 20,991.03 : x
  2. Step 2: Convert to fraction form
    37,985.64/52,419.87 = 20,991.03/x
  3. Step 3: Cross multiply
    37,985.64x = 52,419.87 × 20,991.03
  4. Step 4: Simplify right side
    37,985.64x = 1,100,347,063.77
  5. Step 5: Solve for x
    x = 1,100,347,063.77/37,985.64
  6. Step 6: Final answer
    x = 28,967.45

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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.