Home / 38,988.95-58,463.37-12,690.27

Finding the Fourth Proportional to 38,988.95, 58,463.37 and 12,690.27

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Solution

The fourth proportional to 38,988.95, 58,463.37 and 12,690.27 is: 19,028.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,988.95 : 58,463.37 = 12,690.27 : x
  2. Step 2: Convert to fraction form
    38,988.95/58,463.37 = 12,690.27/x
  3. Step 3: Cross multiply
    38,988.95x = 58,463.37 × 12,690.27
  4. Step 4: Simplify right side
    38,988.95x = 741,915,950.41
  5. Step 5: Solve for x
    x = 741,915,950.41/38,988.95
  6. Step 6: Final answer
    x = 19,028.88

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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.