Home / 38,983.88-58,479.47-12,681.56

Finding the Fourth Proportional to 38,983.88, 58,479.47 and 12,681.56

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Solution

The fourth proportional to 38,983.88, 58,479.47 and 12,681.56 is: 19,023.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,983.88 : 58,479.47 = 12,681.56 : x
  2. Step 2: Convert to fraction form
    38,983.88/58,479.47 = 12,681.56/x
  3. Step 3: Cross multiply
    38,983.88x = 58,479.47 × 12,681.56
  4. Step 4: Simplify right side
    38,983.88x = 741,610,551.77
  5. Step 5: Solve for x
    x = 741,610,551.77/38,983.88
  6. Step 6: Final answer
    x = 19,023.52

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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.