Home / 21,432.36-29,590.80-13,063.08

Finding the Fourth Proportional to 21,432.36, 29,590.80 and 13,063.08

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Solution

The fourth proportional to 21,432.36, 29,590.80 and 13,063.08 is: 18,035.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,432.36 : 29,590.80 = 13,063.08 : x
  2. Step 2: Convert to fraction form
    21,432.36/29,590.80 = 13,063.08/x
  3. Step 3: Cross multiply
    21,432.36x = 29,590.80 × 13,063.08
  4. Step 4: Simplify right side
    21,432.36x = 386,546,987.66
  5. Step 5: Solve for x
    x = 386,546,987.66/21,432.36
  6. Step 6: Final answer
    x = 18,035.67

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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.