Home / 38,731.58-53,437.39-21,733.32

Finding the Fourth Proportional to 38,731.58, 53,437.39 and 21,733.32

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Solution

The fourth proportional to 38,731.58, 53,437.39 and 21,733.32 is: 29,985.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,731.58 : 53,437.39 = 21,733.32 : x
  2. Step 2: Convert to fraction form
    38,731.58/53,437.39 = 21,733.32/x
  3. Step 3: Cross multiply
    38,731.58x = 53,437.39 × 21,733.32
  4. Step 4: Simplify right side
    38,731.58x = 1,161,371,896.83
  5. Step 5: Solve for x
    x = 1,161,371,896.83/38,731.58
  6. Step 6: Final answer
    x = 29,985.15

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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.