Home / 39,557.46-54,590.58-21,653.76

Finding the Fourth Proportional to 39,557.46, 54,590.58 and 21,653.76

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Solution

The fourth proportional to 39,557.46, 54,590.58 and 21,653.76 is: 29,882.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,557.46 : 54,590.58 = 21,653.76 : x
  2. Step 2: Convert to fraction form
    39,557.46/54,590.58 = 21,653.76/x
  3. Step 3: Cross multiply
    39,557.46x = 54,590.58 × 21,653.76
  4. Step 4: Simplify right side
    39,557.46x = 1,182,091,317.58
  5. Step 5: Solve for x
    x = 1,182,091,317.58/39,557.46
  6. Step 6: Final answer
    x = 29,882.89

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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.