Home / 38,570.47-53,221.93-21,573.83

Finding the Fourth Proportional to 38,570.47, 53,221.93 and 21,573.83

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Solution

The fourth proportional to 38,570.47, 53,221.93 and 21,573.83 is: 29,768.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,570.47 : 53,221.93 = 21,573.83 : x
  2. Step 2: Convert to fraction form
    38,570.47/53,221.93 = 21,573.83/x
  3. Step 3: Cross multiply
    38,570.47x = 53,221.93 × 21,573.83
  4. Step 4: Simplify right side
    38,570.47x = 1,148,200,870.09
  5. Step 5: Solve for x
    x = 1,148,200,870.09/38,570.47
  6. Step 6: Final answer
    x = 29,768.91

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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.