Home / 37,985.85-52,417.77-20,989.91

Finding the Fourth Proportional to 37,985.85, 52,417.77 and 20,989.91

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Solution

The fourth proportional to 37,985.85, 52,417.77 and 20,989.91 is: 28,964.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,985.85 : 52,417.77 = 20,989.91 : x
  2. Step 2: Convert to fraction form
    37,985.85/52,417.77 = 20,989.91/x
  3. Step 3: Cross multiply
    37,985.85x = 52,417.77 × 20,989.91
  4. Step 4: Simplify right side
    37,985.85x = 1,100,244,274.70
  5. Step 5: Solve for x
    x = 1,100,244,274.70/37,985.85
  6. Step 6: Final answer
    x = 28,964.58

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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.