Home / 30,521.64-45,769.50-13,876.68

Finding the Fourth Proportional to 30,521.64, 45,769.50 and 13,876.68

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Solution

The fourth proportional to 30,521.64, 45,769.50 and 13,876.68 is: 20,809.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,521.64 : 45,769.50 = 13,876.68 : x
  2. Step 2: Convert to fraction form
    30,521.64/45,769.50 = 13,876.68/x
  3. Step 3: Cross multiply
    30,521.64x = 45,769.50 × 13,876.68
  4. Step 4: Simplify right side
    30,521.64x = 635,128,705.26
  5. Step 5: Solve for x
    x = 635,128,705.26/30,521.64
  6. Step 6: Final answer
    x = 20,809.13

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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.