Home / 20,316.53-28,037.98-11,364.41

Finding the Fourth Proportional to 20,316.53, 28,037.98 and 11,364.41

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Solution

The fourth proportional to 20,316.53, 28,037.98 and 11,364.41 is: 15,683.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,316.53 : 28,037.98 = 11,364.41 : x
  2. Step 2: Convert to fraction form
    20,316.53/28,037.98 = 11,364.41/x
  3. Step 3: Cross multiply
    20,316.53x = 28,037.98 × 11,364.41
  4. Step 4: Simplify right side
    20,316.53x = 318,635,184.59
  5. Step 5: Solve for x
    x = 318,635,184.59/20,316.53
  6. Step 6: Final answer
    x = 15,683.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.