Home / 29,130.18-40,218.13-19,947.11

Finding the Fourth Proportional to 29,130.18, 40,218.13 and 19,947.11

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Solution

The fourth proportional to 29,130.18, 40,218.13 and 19,947.11 is: 27,539.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,130.18 : 40,218.13 = 19,947.11 : x
  2. Step 2: Convert to fraction form
    29,130.18/40,218.13 = 19,947.11/x
  3. Step 3: Cross multiply
    29,130.18x = 40,218.13 × 19,947.11
  4. Step 4: Simplify right side
    29,130.18x = 802,235,231.30
  5. Step 5: Solve for x
    x = 802,235,231.30/29,130.18
  6. Step 6: Final answer
    x = 27,539.65

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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.