Home / 31,613.51-47,426.40-9,426.39

Finding the Fourth Proportional to 31,613.51, 47,426.40 and 9,426.39

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Solution

The fourth proportional to 31,613.51, 47,426.40 and 9,426.39 is: 14,141.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,613.51 : 47,426.40 = 9,426.39 : x
  2. Step 2: Convert to fraction form
    31,613.51/47,426.40 = 9,426.39/x
  3. Step 3: Cross multiply
    31,613.51x = 47,426.40 × 9,426.39
  4. Step 4: Simplify right side
    31,613.51x = 447,059,742.70
  5. Step 5: Solve for x
    x = 447,059,742.70/31,613.51
  6. Step 6: Final answer
    x = 14,141.42

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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.