Home / 31,423.48-47,135.64-10,365.70

Finding the Fourth Proportional to 31,423.48, 47,135.64 and 10,365.70

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Solution

The fourth proportional to 31,423.48, 47,135.64 and 10,365.70 is: 15,548.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,423.48 : 47,135.64 = 10,365.70 : x
  2. Step 2: Convert to fraction form
    31,423.48/47,135.64 = 10,365.70/x
  3. Step 3: Cross multiply
    31,423.48x = 47,135.64 × 10,365.70
  4. Step 4: Simplify right side
    31,423.48x = 488,593,903.55
  5. Step 5: Solve for x
    x = 488,593,903.55/31,423.48
  6. Step 6: Final answer
    x = 15,548.69

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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.