Home / 20,461.06-30,682.64-10,323.20

Finding the Fourth Proportional to 20,461.06, 30,682.64 and 10,323.20

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Solution

The fourth proportional to 20,461.06, 30,682.64 and 10,323.20 is: 15,480.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,461.06 : 30,682.64 = 10,323.20 : x
  2. Step 2: Convert to fraction form
    20,461.06/30,682.64 = 10,323.20/x
  3. Step 3: Cross multiply
    20,461.06x = 30,682.64 × 10,323.20
  4. Step 4: Simplify right side
    20,461.06x = 316,742,977.99
  5. Step 5: Solve for x
    x = 316,742,977.99/20,461.06
  6. Step 6: Final answer
    x = 15,480.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.