Home / 31,305.12-46,957.80-7,931.52

Finding the Fourth Proportional to 31,305.12, 46,957.80 and 7,931.52

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Solution

The fourth proportional to 31,305.12, 46,957.80 and 7,931.52 is: 11,897.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,305.12 : 46,957.80 = 7,931.52 : x
  2. Step 2: Convert to fraction form
    31,305.12/46,957.80 = 7,931.52/x
  3. Step 3: Cross multiply
    31,305.12x = 46,957.80 × 7,931.52
  4. Step 4: Simplify right side
    31,305.12x = 372,446,729.86
  5. Step 5: Solve for x
    x = 372,446,729.86/31,305.12
  6. Step 6: Final answer
    x = 11,897.31

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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.