Home / 28,287.96-42,367.30-13,507.23

Finding the Fourth Proportional to 28,287.96, 42,367.30 and 13,507.23

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Solution

The fourth proportional to 28,287.96, 42,367.30 and 13,507.23 is: 20,229.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,287.96 : 42,367.30 = 13,507.23 : x
  2. Step 2: Convert to fraction form
    28,287.96/42,367.30 = 13,507.23/x
  3. Step 3: Cross multiply
    28,287.96x = 42,367.30 × 13,507.23
  4. Step 4: Simplify right side
    28,287.96x = 572,264,653.74
  5. Step 5: Solve for x
    x = 572,264,653.74/28,287.96
  6. Step 6: Final answer
    x = 20,229.98

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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.