Home / 20,030.12-27,643.64-11,532.54

Finding the Fourth Proportional to 20,030.12, 27,643.64 and 11,532.54

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Solution

The fourth proportional to 20,030.12, 27,643.64 and 11,532.54 is: 15,916.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,030.12 : 27,643.64 = 11,532.54 : x
  2. Step 2: Convert to fraction form
    20,030.12/27,643.64 = 11,532.54/x
  3. Step 3: Cross multiply
    20,030.12x = 27,643.64 × 11,532.54
  4. Step 4: Simplify right side
    20,030.12x = 318,801,384.05
  5. Step 5: Solve for x
    x = 318,801,384.05/20,030.12
  6. Step 6: Final answer
    x = 15,916.10

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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.