Home / 21,087.04-31,630.52-6,306.32

Finding the Fourth Proportional to 21,087.04, 31,630.52 and 6,306.32

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Solution

The fourth proportional to 21,087.04, 31,630.52 and 6,306.32 is: 9,459.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,087.04 : 31,630.52 = 6,306.32 : x
  2. Step 2: Convert to fraction form
    21,087.04/31,630.52 = 6,306.32/x
  3. Step 3: Cross multiply
    21,087.04x = 31,630.52 × 6,306.32
  4. Step 4: Simplify right side
    21,087.04x = 199,472,180.89
  5. Step 5: Solve for x
    x = 199,472,180.89/21,087.04
  6. Step 6: Final answer
    x = 9,459.47

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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.