Home / 38,012.68-52,455.38-21,015.93

Finding the Fourth Proportional to 38,012.68, 52,455.38 and 21,015.93

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Solution

The fourth proportional to 38,012.68, 52,455.38 and 21,015.93 is: 29,000.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,012.68 : 52,455.38 = 21,015.93 : x
  2. Step 2: Convert to fraction form
    38,012.68/52,455.38 = 21,015.93/x
  3. Step 3: Cross multiply
    38,012.68x = 52,455.38 × 21,015.93
  4. Step 4: Simplify right side
    38,012.68x = 1,102,398,804.05
  5. Step 5: Solve for x
    x = 1,102,398,804.05/38,012.68
  6. Step 6: Final answer
    x = 29,000.82

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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.