Home / 29,820.06-41,139.90-19,215.88

Finding the Fourth Proportional to 29,820.06, 41,139.90 and 19,215.88

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Solution

The fourth proportional to 29,820.06, 41,139.90 and 19,215.88 is: 26,510.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,820.06 : 41,139.90 = 19,215.88 : x
  2. Step 2: Convert to fraction form
    29,820.06/41,139.90 = 19,215.88/x
  3. Step 3: Cross multiply
    29,820.06x = 41,139.90 × 19,215.88
  4. Step 4: Simplify right side
    29,820.06x = 790,539,381.61
  5. Step 5: Solve for x
    x = 790,539,381.61/29,820.06
  6. Step 6: Final answer
    x = 26,510.32

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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.