Home / 29,820.07-41,139.89-19,215.88

Finding the Fourth Proportional to 29,820.07, 41,139.89 and 19,215.88

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Solution

The fourth proportional to 29,820.07, 41,139.89 and 19,215.88 is: 26,510.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,820.07 : 41,139.89 = 19,215.88 : x
  2. Step 2: Convert to fraction form
    29,820.07/41,139.89 = 19,215.88/x
  3. Step 3: Cross multiply
    29,820.07x = 41,139.89 × 19,215.88
  4. Step 4: Simplify right side
    29,820.07x = 790,538,887.67
  5. Step 5: Solve for x
    x = 790,538,887.67/29,820.07
  6. Step 6: Final answer
    x = 26,510.30

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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.