Home / 20,607.54-28,427.94-13,041.12

Finding the Fourth Proportional to 20,607.54, 28,427.94 and 13,041.12

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Solution

The fourth proportional to 20,607.54, 28,427.94 and 13,041.12 is: 17,990.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,607.54 : 28,427.94 = 13,041.12 : x
  2. Step 2: Convert to fraction form
    20,607.54/28,427.94 = 13,041.12/x
  3. Step 3: Cross multiply
    20,607.54x = 28,427.94 × 13,041.12
  4. Step 4: Simplify right side
    20,607.54x = 370,732,176.89
  5. Step 5: Solve for x
    x = 370,732,176.89/20,607.54
  6. Step 6: Final answer
    x = 17,990.12

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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.