Home / 28,357.26-42,542.34-14,316.72

Finding the Fourth Proportional to 28,357.26, 42,542.34 and 14,316.72

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Solution

The fourth proportional to 28,357.26, 42,542.34 and 14,316.72 is: 21,478.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,357.26 : 42,542.34 = 14,316.72 : x
  2. Step 2: Convert to fraction form
    28,357.26/42,542.34 = 14,316.72/x
  3. Step 3: Cross multiply
    28,357.26x = 42,542.34 × 14,316.72
  4. Step 4: Simplify right side
    28,357.26x = 609,066,769.92
  5. Step 5: Solve for x
    x = 609,066,769.92/28,357.26
  6. Step 6: Final answer
    x = 21,478.34

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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.