Home / 39,460.03-54,456.15-21,556.70

Finding the Fourth Proportional to 39,460.03, 54,456.15 and 21,556.70

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Solution

The fourth proportional to 39,460.03, 54,456.15 and 21,556.70 is: 29,748.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,460.03 : 54,456.15 = 21,556.70 : x
  2. Step 2: Convert to fraction form
    39,460.03/54,456.15 = 21,556.70/x
  3. Step 3: Cross multiply
    39,460.03x = 54,456.15 × 21,556.70
  4. Step 4: Simplify right side
    39,460.03x = 1,173,894,888.71
  5. Step 5: Solve for x
    x = 1,173,894,888.71/39,460.03
  6. Step 6: Final answer
    x = 29,748.96

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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.