Home / 31,308.70-46,955.61-12,588.79

Finding the Fourth Proportional to 31,308.70, 46,955.61 and 12,588.79

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Solution

The fourth proportional to 31,308.70, 46,955.61 and 12,588.79 is: 18,880.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,308.70 : 46,955.61 = 12,588.79 : x
  2. Step 2: Convert to fraction form
    31,308.70/46,955.61 = 12,588.79/x
  3. Step 3: Cross multiply
    31,308.70x = 46,955.61 × 12,588.79
  4. Step 4: Simplify right side
    31,308.70x = 591,114,313.61
  5. Step 5: Solve for x
    x = 591,114,313.61/31,308.70
  6. Step 6: Final answer
    x = 18,880.19

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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.