Home / 28,342.68-42,520.50-13,555.32

Finding the Fourth Proportional to 28,342.68, 42,520.50 and 13,555.32

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Solution

The fourth proportional to 28,342.68, 42,520.50 and 13,555.32 is: 20,336.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,342.68 : 42,520.50 = 13,555.32 : x
  2. Step 2: Convert to fraction form
    28,342.68/42,520.50 = 13,555.32/x
  3. Step 3: Cross multiply
    28,342.68x = 42,520.50 × 13,555.32
  4. Step 4: Simplify right side
    28,342.68x = 576,378,984.06
  5. Step 5: Solve for x
    x = 576,378,984.06/28,342.68
  6. Step 6: Final answer
    x = 20,336.08

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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.