Home / 28,672.65-43,008.93-18,809.60

Finding the Fourth Proportional to 28,672.65, 43,008.93 and 18,809.60

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Solution

The fourth proportional to 28,672.65, 43,008.93 and 18,809.60 is: 28,214.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,672.65 : 43,008.93 = 18,809.60 : x
  2. Step 2: Convert to fraction form
    28,672.65/43,008.93 = 18,809.60/x
  3. Step 3: Cross multiply
    28,672.65x = 43,008.93 × 18,809.60
  4. Step 4: Simplify right side
    28,672.65x = 808,980,554.68
  5. Step 5: Solve for x
    x = 808,980,554.68/28,672.65
  6. Step 6: Final answer
    x = 28,214.36

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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.