Home / 28,989.42-43,492.80-16,668.78

Finding the Fourth Proportional to 28,989.42, 43,492.80 and 16,668.78

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Solution

The fourth proportional to 28,989.42, 43,492.80 and 16,668.78 is: 25,008.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,989.42 : 43,492.80 = 16,668.78 : x
  2. Step 2: Convert to fraction form
    28,989.42/43,492.80 = 16,668.78/x
  3. Step 3: Cross multiply
    28,989.42x = 43,492.80 × 16,668.78
  4. Step 4: Simplify right side
    28,989.42x = 724,971,914.78
  5. Step 5: Solve for x
    x = 724,971,914.78/28,989.42
  6. Step 6: Final answer
    x = 25,008.16

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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.