Home / 31,646.91-43,662.87-21,038.34

Finding the Fourth Proportional to 31,646.91, 43,662.87 and 21,038.34

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Solution

The fourth proportional to 31,646.91, 43,662.87 and 21,038.34 is: 29,026.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,646.91 : 43,662.87 = 21,038.34 : x
  2. Step 2: Convert to fraction form
    31,646.91/43,662.87 = 21,038.34/x
  3. Step 3: Cross multiply
    31,646.91x = 43,662.87 × 21,038.34
  4. Step 4: Simplify right side
    31,646.91x = 918,594,304.44
  5. Step 5: Solve for x
    x = 918,594,304.44/31,646.91
  6. Step 6: Final answer
    x = 29,026.35

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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.