Home / 37,190.81-51,323.28-20,423.81

Finding the Fourth Proportional to 37,190.81, 51,323.28 and 20,423.81

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Solution

The fourth proportional to 37,190.81, 51,323.28 and 20,423.81 is: 28,184.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,190.81 : 51,323.28 = 20,423.81 : x
  2. Step 2: Convert to fraction form
    37,190.81/51,323.28 = 20,423.81/x
  3. Step 3: Cross multiply
    37,190.81x = 51,323.28 × 20,423.81
  4. Step 4: Simplify right side
    37,190.81x = 1,048,216,919.30
  5. Step 5: Solve for x
    x = 1,048,216,919.30/37,190.81
  6. Step 6: Final answer
    x = 28,184.84

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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.