Home / 21,281.52-31,922.26-5,698.72

Finding the Fourth Proportional to 21,281.52, 31,922.26 and 5,698.72

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Solution

The fourth proportional to 21,281.52, 31,922.26 and 5,698.72 is: 8,548.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,281.52 : 31,922.26 = 5,698.72 : x
  2. Step 2: Convert to fraction form
    21,281.52/31,922.26 = 5,698.72/x
  3. Step 3: Cross multiply
    21,281.52x = 31,922.26 × 5,698.72
  4. Step 4: Simplify right side
    21,281.52x = 181,916,021.51
  5. Step 5: Solve for x
    x = 181,916,021.51/21,281.52
  6. Step 6: Final answer
    x = 8,548.07

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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.