Home / 20,544.55-30,753.95-13,156.13

Finding the Fourth Proportional to 20,544.55, 30,753.95 and 13,156.13

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Solution

The fourth proportional to 20,544.55, 30,753.95 and 13,156.13 is: 19,693.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,544.55 : 30,753.95 = 13,156.13 : x
  2. Step 2: Convert to fraction form
    20,544.55/30,753.95 = 13,156.13/x
  3. Step 3: Cross multiply
    20,544.55x = 30,753.95 × 13,156.13
  4. Step 4: Simplify right side
    20,544.55x = 404,602,975.32
  5. Step 5: Solve for x
    x = 404,602,975.32/20,544.55
  6. Step 6: Final answer
    x = 19,693.93

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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.