Home / 28,555.16-42,813.83-15,219.70

Finding the Fourth Proportional to 28,555.16, 42,813.83 and 15,219.70

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Solution

The fourth proportional to 28,555.16, 42,813.83 and 15,219.70 is: 22,819.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,555.16 : 42,813.83 = 15,219.70 : x
  2. Step 2: Convert to fraction form
    28,555.16/42,813.83 = 15,219.70/x
  3. Step 3: Cross multiply
    28,555.16x = 42,813.83 × 15,219.70
  4. Step 4: Simplify right side
    28,555.16x = 651,613,515.26
  5. Step 5: Solve for x
    x = 651,613,515.26/28,555.16
  6. Step 6: Final answer
    x = 22,819.47

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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.