Home / 31,719.47-47,585.48-14,189.45

Finding the Fourth Proportional to 31,719.47, 47,585.48 and 14,189.45

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Solution

The fourth proportional to 31,719.47, 47,585.48 and 14,189.45 is: 21,286.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,719.47 : 47,585.48 = 14,189.45 : x
  2. Step 2: Convert to fraction form
    31,719.47/47,585.48 = 14,189.45/x
  3. Step 3: Cross multiply
    31,719.47x = 47,585.48 × 14,189.45
  4. Step 4: Simplify right side
    31,719.47x = 675,211,480.31
  5. Step 5: Solve for x
    x = 675,211,480.31/31,719.47
  6. Step 6: Final answer
    x = 21,286.98

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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.