Home / 38,557.24-53,208.30-21,789.88

Finding the Fourth Proportional to 38,557.24, 53,208.30 and 21,789.88

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Solution

The fourth proportional to 38,557.24, 53,208.30 and 21,789.88 is: 30,069.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,557.24 : 53,208.30 = 21,789.88 : x
  2. Step 2: Convert to fraction form
    38,557.24/53,208.30 = 21,789.88/x
  3. Step 3: Cross multiply
    38,557.24x = 53,208.30 × 21,789.88
  4. Step 4: Simplify right side
    38,557.24x = 1,159,402,472.00
  5. Step 5: Solve for x
    x = 1,159,402,472.00/38,557.24
  6. Step 6: Final answer
    x = 30,069.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.