Home / 21,040.04-31,529.98-15,449.52

Finding the Fourth Proportional to 21,040.04, 31,529.98 and 15,449.52

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Solution

The fourth proportional to 21,040.04, 31,529.98 and 15,449.52 is: 23,152.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,040.04 : 31,529.98 = 15,449.52 : x
  2. Step 2: Convert to fraction form
    21,040.04/31,529.98 = 15,449.52/x
  3. Step 3: Cross multiply
    21,040.04x = 31,529.98 × 15,449.52
  4. Step 4: Simplify right side
    21,040.04x = 487,122,898.96
  5. Step 5: Solve for x
    x = 487,122,898.96/21,040.04
  6. Step 6: Final answer
    x = 23,152.19

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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.