Home / 20,586.45-30,878.87-14,328.39

Finding the Fourth Proportional to 20,586.45, 30,878.87 and 14,328.39

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Solution

The fourth proportional to 20,586.45, 30,878.87 and 14,328.39 is: 21,492.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,586.45 : 30,878.87 = 14,328.39 : x
  2. Step 2: Convert to fraction form
    20,586.45/30,878.87 = 14,328.39/x
  3. Step 3: Cross multiply
    20,586.45x = 30,878.87 × 14,328.39
  4. Step 4: Simplify right side
    20,586.45x = 442,444,420.48
  5. Step 5: Solve for x
    x = 442,444,420.48/20,586.45
  6. Step 6: Final answer
    x = 21,492.02

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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.