Home / 31,319.08-46,980.27-7,945.72

Finding the Fourth Proportional to 31,319.08, 46,980.27 and 7,945.72

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Solution

The fourth proportional to 31,319.08, 46,980.27 and 7,945.72 is: 11,919.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,319.08 : 46,980.27 = 7,945.72 : x
  2. Step 2: Convert to fraction form
    31,319.08/46,980.27 = 7,945.72/x
  3. Step 3: Cross multiply
    31,319.08x = 46,980.27 × 7,945.72
  4. Step 4: Simplify right side
    31,319.08x = 373,292,070.94
  5. Step 5: Solve for x
    x = 373,292,070.94/31,319.08
  6. Step 6: Final answer
    x = 11,919.00

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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.