Home / 21,253.04-31,880.69-6,460.82

Finding the Fourth Proportional to 21,253.04, 31,880.69 and 6,460.82

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Solution

The fourth proportional to 21,253.04, 31,880.69 and 6,460.82 is: 9,691.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,253.04 : 31,880.69 = 6,460.82 : x
  2. Step 2: Convert to fraction form
    21,253.04/31,880.69 = 6,460.82/x
  3. Step 3: Cross multiply
    21,253.04x = 31,880.69 × 6,460.82
  4. Step 4: Simplify right side
    21,253.04x = 205,975,399.57
  5. Step 5: Solve for x
    x = 205,975,399.57/21,253.04
  6. Step 6: Final answer
    x = 9,691.57

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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.