Home / 31,563.06-47,303.67-12,821.14

Finding the Fourth Proportional to 31,563.06, 47,303.67 and 12,821.14

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Solution

The fourth proportional to 31,563.06, 47,303.67 and 12,821.14 is: 19,215.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,563.06 : 47,303.67 = 12,821.14 : x
  2. Step 2: Convert to fraction form
    31,563.06/47,303.67 = 12,821.14/x
  3. Step 3: Cross multiply
    31,563.06x = 47,303.67 × 12,821.14
  4. Step 4: Simplify right side
    31,563.06x = 606,486,975.58
  5. Step 5: Solve for x
    x = 606,486,975.58/31,563.06
  6. Step 6: Final answer
    x = 19,215.09

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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.