Home / 31,415.12-47,122.72-10,637.04

Finding the Fourth Proportional to 31,415.12, 47,122.72 and 10,637.04

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Solution

The fourth proportional to 31,415.12, 47,122.72 and 10,637.04 is: 15,955.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,415.12 : 47,122.72 = 10,637.04 : x
  2. Step 2: Convert to fraction form
    31,415.12/47,122.72 = 10,637.04/x
  3. Step 3: Cross multiply
    31,415.12x = 47,122.72 × 10,637.04
  4. Step 4: Simplify right side
    31,415.12x = 501,246,257.55
  5. Step 5: Solve for x
    x = 501,246,257.55/31,415.12
  6. Step 6: Final answer
    x = 15,955.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.