Home / 21,081.04-31,621.52-6,300.32

Finding the Fourth Proportional to 21,081.04, 31,621.52 and 6,300.32

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Solution

The fourth proportional to 21,081.04, 31,621.52 and 6,300.32 is: 9,450.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,081.04 : 31,621.52 = 6,300.32 : x
  2. Step 2: Convert to fraction form
    21,081.04/31,621.52 = 6,300.32/x
  3. Step 3: Cross multiply
    21,081.04x = 31,621.52 × 6,300.32
  4. Step 4: Simplify right side
    21,081.04x = 199,225,694.89
  5. Step 5: Solve for x
    x = 199,225,694.89/21,081.04
  6. Step 6: Final answer
    x = 9,450.47

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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.