Home / 31,207.20-46,810.80-21,184.80

Finding the Fourth Proportional to 31,207.20, 46,810.80 and 21,184.80

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Solution

The fourth proportional to 31,207.20, 46,810.80 and 21,184.80 is: 31,777.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,207.20 : 46,810.80 = 21,184.80 : x
  2. Step 2: Convert to fraction form
    31,207.20/46,810.80 = 21,184.80/x
  3. Step 3: Cross multiply
    31,207.20x = 46,810.80 × 21,184.80
  4. Step 4: Simplify right side
    31,207.20x = 991,677,435.84
  5. Step 5: Solve for x
    x = 991,677,435.84/31,207.20
  6. Step 6: Final answer
    x = 31,777.20

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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.