Home / 37,839.90-56,719.35-12,856.80

Finding the Fourth Proportional to 37,839.90, 56,719.35 and 12,856.80

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Solution

The fourth proportional to 37,839.90, 56,719.35 and 12,856.80 is: 19,271.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,839.90 : 56,719.35 = 12,856.80 : x
  2. Step 2: Convert to fraction form
    37,839.90/56,719.35 = 12,856.80/x
  3. Step 3: Cross multiply
    37,839.90x = 56,719.35 × 12,856.80
  4. Step 4: Simplify right side
    37,839.90x = 729,229,339.08
  5. Step 5: Solve for x
    x = 729,229,339.08/37,839.90
  6. Step 6: Final answer
    x = 19,271.44

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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.