Home / 20,464.99-28,240.17-11,510.76

Finding the Fourth Proportional to 20,464.99, 28,240.17 and 11,510.76

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Solution

The fourth proportional to 20,464.99, 28,240.17 and 11,510.76 is: 15,884.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,464.99 : 28,240.17 = 11,510.76 : x
  2. Step 2: Convert to fraction form
    20,464.99/28,240.17 = 11,510.76/x
  3. Step 3: Cross multiply
    20,464.99x = 28,240.17 × 11,510.76
  4. Step 4: Simplify right side
    20,464.99x = 325,065,881.96
  5. Step 5: Solve for x
    x = 325,065,881.96/20,464.99
  6. Step 6: Final answer
    x = 15,884.00

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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.