Home / 31,305.60-46,946.72-12,579.29

Finding the Fourth Proportional to 31,305.60, 46,946.72 and 12,579.29

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Solution

The fourth proportional to 31,305.60, 46,946.72 and 12,579.29 is: 18,864.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,305.60 : 46,946.72 = 12,579.29 : x
  2. Step 2: Convert to fraction form
    31,305.60/46,946.72 = 12,579.29/x
  3. Step 3: Cross multiply
    31,305.60x = 46,946.72 × 12,579.29
  4. Step 4: Simplify right side
    31,305.60x = 590,556,542.92
  5. Step 5: Solve for x
    x = 590,556,542.92/31,305.60
  6. Step 6: Final answer
    x = 18,864.25

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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.