Home / 29,040.13-40,087.65-19,621.45

Finding the Fourth Proportional to 29,040.13, 40,087.65 and 19,621.45

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Solution

The fourth proportional to 29,040.13, 40,087.65 and 19,621.45 is: 27,085.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,040.13 : 40,087.65 = 19,621.45 : x
  2. Step 2: Convert to fraction form
    29,040.13/40,087.65 = 19,621.45/x
  3. Step 3: Cross multiply
    29,040.13x = 40,087.65 × 19,621.45
  4. Step 4: Simplify right side
    29,040.13x = 786,577,820.09
  5. Step 5: Solve for x
    x = 786,577,820.09/29,040.13
  6. Step 6: Final answer
    x = 27,085.89

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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.