Home / 35,321.06-48,721.43-20,971.15

Finding the Fourth Proportional to 35,321.06, 48,721.43 and 20,971.15

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Solution

The fourth proportional to 35,321.06, 48,721.43 and 20,971.15 is: 28,927.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,321.06 : 48,721.43 = 20,971.15 : x
  2. Step 2: Convert to fraction form
    35,321.06/48,721.43 = 20,971.15/x
  3. Step 3: Cross multiply
    35,321.06x = 48,721.43 × 20,971.15
  4. Step 4: Simplify right side
    35,321.06x = 1,021,744,347.37
  5. Step 5: Solve for x
    x = 1,021,744,347.37/35,321.06
  6. Step 6: Final answer
    x = 28,927.34

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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.