Home / 19,713.79-29,574.04-8,620.23

Finding the Fourth Proportional to 19,713.79, 29,574.04 and 8,620.23

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Solution

The fourth proportional to 19,713.79, 29,574.04 and 8,620.23 is: 12,931.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,713.79 : 29,574.04 = 8,620.23 : x
  2. Step 2: Convert to fraction form
    19,713.79/29,574.04 = 8,620.23/x
  3. Step 3: Cross multiply
    19,713.79x = 29,574.04 × 8,620.23
  4. Step 4: Simplify right side
    19,713.79x = 254,935,026.83
  5. Step 5: Solve for x
    x = 254,935,026.83/19,713.79
  6. Step 6: Final answer
    x = 12,931.81

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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.