Home / 29,271.70-40,394.90-15,842.95

Finding the Fourth Proportional to 29,271.70, 40,394.90 and 15,842.95

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Solution

The fourth proportional to 29,271.70, 40,394.90 and 15,842.95 is: 21,863.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,271.70 : 40,394.90 = 15,842.95 : x
  2. Step 2: Convert to fraction form
    29,271.70/40,394.90 = 15,842.95/x
  3. Step 3: Cross multiply
    29,271.70x = 40,394.90 × 15,842.95
  4. Step 4: Simplify right side
    29,271.70x = 639,974,178.98
  5. Step 5: Solve for x
    x = 639,974,178.98/29,271.70
  6. Step 6: Final answer
    x = 21,863.24

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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.