Home / 38,125.60-52,611.81-21,130.56

Finding the Fourth Proportional to 38,125.60, 52,611.81 and 21,130.56

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Solution

The fourth proportional to 38,125.60, 52,611.81 and 21,130.56 is: 29,159.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,125.60 : 52,611.81 = 21,130.56 : x
  2. Step 2: Convert to fraction form
    38,125.60/52,611.81 = 21,130.56/x
  3. Step 3: Cross multiply
    38,125.60x = 52,611.81 × 21,130.56
  4. Step 4: Simplify right side
    38,125.60x = 1,111,717,007.91
  5. Step 5: Solve for x
    x = 1,111,717,007.91/38,125.60
  6. Step 6: Final answer
    x = 29,159.33

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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.