Home / 29,294.34-40,426.20-15,865.71

Finding the Fourth Proportional to 29,294.34, 40,426.20 and 15,865.71

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Solution

The fourth proportional to 29,294.34, 40,426.20 and 15,865.71 is: 21,894.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,294.34 : 40,426.20 = 15,865.71 : x
  2. Step 2: Convert to fraction form
    29,294.34/40,426.20 = 15,865.71/x
  3. Step 3: Cross multiply
    29,294.34x = 40,426.20 × 15,865.71
  4. Step 4: Simplify right side
    29,294.34x = 641,390,365.60
  5. Step 5: Solve for x
    x = 641,390,365.60/29,294.34
  6. Step 6: Final answer
    x = 21,894.69

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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.