Home / 29,271.49-40,394.78-15,842.74

Finding the Fourth Proportional to 29,271.49, 40,394.78 and 15,842.74

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Solution

The fourth proportional to 29,271.49, 40,394.78 and 15,842.74 is: 21,863.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,271.49 : 40,394.78 = 15,842.74 : x
  2. Step 2: Convert to fraction form
    29,271.49/40,394.78 = 15,842.74/x
  3. Step 3: Cross multiply
    29,271.49x = 40,394.78 × 15,842.74
  4. Step 4: Simplify right side
    29,271.49x = 639,963,996.90
  5. Step 5: Solve for x
    x = 639,963,996.90/29,271.49
  6. Step 6: Final answer
    x = 21,863.05

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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.