Home / 20,937.14-31,416.48-11,575.40

Finding the Fourth Proportional to 20,937.14, 31,416.48 and 11,575.40

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Solution

The fourth proportional to 20,937.14, 31,416.48 and 11,575.40 is: 17,369.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,937.14 : 31,416.48 = 11,575.40 : x
  2. Step 2: Convert to fraction form
    20,937.14/31,416.48 = 11,575.40/x
  3. Step 3: Cross multiply
    20,937.14x = 31,416.48 × 11,575.40
  4. Step 4: Simplify right side
    20,937.14x = 363,658,322.59
  5. Step 5: Solve for x
    x = 363,658,322.59/20,937.14
  6. Step 6: Final answer
    x = 17,369.05

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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.