Home / 21,064.05-31,585.95-6,267.78

Finding the Fourth Proportional to 21,064.05, 31,585.95 and 6,267.78

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Solution

The fourth proportional to 21,064.05, 31,585.95 and 6,267.78 is: 9,398.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,064.05 : 31,585.95 = 6,267.78 : x
  2. Step 2: Convert to fraction form
    21,064.05/31,585.95 = 6,267.78/x
  3. Step 3: Cross multiply
    21,064.05x = 31,585.95 × 6,267.78
  4. Step 4: Simplify right side
    21,064.05x = 197,973,785.69
  5. Step 5: Solve for x
    x = 197,973,785.69/21,064.05
  6. Step 6: Final answer
    x = 9,398.66

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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.