Home / 20,607.47-28,438.32-11,176.03

Finding the Fourth Proportional to 20,607.47, 28,438.32 and 11,176.03

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Solution

The fourth proportional to 20,607.47, 28,438.32 and 11,176.03 is: 15,422.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,607.47 : 28,438.32 = 11,176.03 : x
  2. Step 2: Convert to fraction form
    20,607.47/28,438.32 = 11,176.03/x
  3. Step 3: Cross multiply
    20,607.47x = 28,438.32 × 11,176.03
  4. Step 4: Simplify right side
    20,607.47x = 317,827,594.93
  5. Step 5: Solve for x
    x = 317,827,594.93/20,607.47
  6. Step 6: Final answer
    x = 15,422.93

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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.