Home / 34,731.32-47,930.09-21,294.77

Finding the Fourth Proportional to 34,731.32, 47,930.09 and 21,294.77

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Solution

The fourth proportional to 34,731.32, 47,930.09 and 21,294.77 is: 29,387.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,731.32 : 47,930.09 = 21,294.77 : x
  2. Step 2: Convert to fraction form
    34,731.32/47,930.09 = 21,294.77/x
  3. Step 3: Cross multiply
    34,731.32x = 47,930.09 × 21,294.77
  4. Step 4: Simplify right side
    34,731.32x = 1,020,659,896.51
  5. Step 5: Solve for x
    x = 1,020,659,896.51/34,731.32
  6. Step 6: Final answer
    x = 29,387.31

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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.