Home / 28,668.32-39,558.80-16,090.40

Finding the Fourth Proportional to 28,668.32, 39,558.80 and 16,090.40

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Solution

The fourth proportional to 28,668.32, 39,558.80 and 16,090.40 is: 22,202.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,668.32 : 39,558.80 = 16,090.40 : x
  2. Step 2: Convert to fraction form
    28,668.32/39,558.80 = 16,090.40/x
  3. Step 3: Cross multiply
    28,668.32x = 39,558.80 × 16,090.40
  4. Step 4: Simplify right side
    28,668.32x = 636,516,915.52
  5. Step 5: Solve for x
    x = 636,516,915.52/28,668.32
  6. Step 6: Final answer
    x = 22,202.80

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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.