Home / 34,762.51-47,972.63-20,422.94

Finding the Fourth Proportional to 34,762.51, 47,972.63 and 20,422.94

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Solution

The fourth proportional to 34,762.51, 47,972.63 and 20,422.94 is: 28,183.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,762.51 : 47,972.63 = 20,422.94 : x
  2. Step 2: Convert to fraction form
    34,762.51/47,972.63 = 20,422.94/x
  3. Step 3: Cross multiply
    34,762.51x = 47,972.63 × 20,422.94
  4. Step 4: Simplify right side
    34,762.51x = 979,741,840.45
  5. Step 5: Solve for x
    x = 979,741,840.45/34,762.51
  6. Step 6: Final answer
    x = 28,183.87

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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.