Home / 31,905.51-47,865.18-9,718.30

Finding the Fourth Proportional to 31,905.51, 47,865.18 and 9,718.30

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Solution

The fourth proportional to 31,905.51, 47,865.18 and 9,718.30 is: 14,579.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,905.51 : 47,865.18 = 9,718.30 : x
  2. Step 2: Convert to fraction form
    31,905.51/47,865.18 = 9,718.30/x
  3. Step 3: Cross multiply
    31,905.51x = 47,865.18 × 9,718.30
  4. Step 4: Simplify right side
    31,905.51x = 465,168,178.79
  5. Step 5: Solve for x
    x = 465,168,178.79/31,905.51
  6. Step 6: Final answer
    x = 14,579.56

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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.