Home / 23,390.81-32,279.35-13,319.25

Finding the Fourth Proportional to 23,390.81, 32,279.35 and 13,319.25

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Solution

The fourth proportional to 23,390.81, 32,279.35 and 13,319.25 is: 18,380.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,390.81 : 32,279.35 = 13,319.25 : x
  2. Step 2: Convert to fraction form
    23,390.81/32,279.35 = 13,319.25/x
  3. Step 3: Cross multiply
    23,390.81x = 32,279.35 × 13,319.25
  4. Step 4: Simplify right side
    23,390.81x = 429,936,732.49
  5. Step 5: Solve for x
    x = 429,936,732.49/23,390.81
  6. Step 6: Final answer
    x = 18,380.58

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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.