Home / 38,569.69-53,231.10-21,574.88

Finding the Fourth Proportional to 38,569.69, 53,231.10 and 21,574.88

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Solution

The fourth proportional to 38,569.69, 53,231.10 and 21,574.88 is: 29,776.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,569.69 : 53,231.10 = 21,574.88 : x
  2. Step 2: Convert to fraction form
    38,569.69/53,231.10 = 21,574.88/x
  3. Step 3: Cross multiply
    38,569.69x = 53,231.10 × 21,574.88
  4. Step 4: Simplify right side
    38,569.69x = 1,148,454,594.77
  5. Step 5: Solve for x
    x = 1,148,454,594.77/38,569.69
  6. Step 6: Final answer
    x = 29,776.09

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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.