Home / 21,346.65-31,994.04-15,108.48

Finding the Fourth Proportional to 21,346.65, 31,994.04 and 15,108.48

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Solution

The fourth proportional to 21,346.65, 31,994.04 and 15,108.48 is: 22,644.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,346.65 : 31,994.04 = 15,108.48 : x
  2. Step 2: Convert to fraction form
    21,346.65/31,994.04 = 15,108.48/x
  3. Step 3: Cross multiply
    21,346.65x = 31,994.04 × 15,108.48
  4. Step 4: Simplify right side
    21,346.65x = 483,381,313.46
  5. Step 5: Solve for x
    x = 483,381,313.46/21,346.65
  6. Step 6: Final answer
    x = 22,644.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.