Home / 31,550.65-47,315.74-10,485.03

Finding the Fourth Proportional to 31,550.65, 47,315.74 and 10,485.03

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Solution

The fourth proportional to 31,550.65, 47,315.74 and 10,485.03 is: 15,724.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,550.65 : 47,315.74 = 10,485.03 : x
  2. Step 2: Convert to fraction form
    31,550.65/47,315.74 = 10,485.03/x
  3. Step 3: Cross multiply
    31,550.65x = 47,315.74 × 10,485.03
  4. Step 4: Simplify right side
    31,550.65x = 496,106,927.16
  5. Step 5: Solve for x
    x = 496,106,927.16/31,550.65
  6. Step 6: Final answer
    x = 15,724.14

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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.