Home / 28,513.01-42,770.95-12,715.32

Finding the Fourth Proportional to 28,513.01, 42,770.95 and 12,715.32

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Solution

The fourth proportional to 28,513.01, 42,770.95 and 12,715.32 is: 19,073.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,513.01 : 42,770.95 = 12,715.32 : x
  2. Step 2: Convert to fraction form
    28,513.01/42,770.95 = 12,715.32/x
  3. Step 3: Cross multiply
    28,513.01x = 42,770.95 × 12,715.32
  4. Step 4: Simplify right side
    28,513.01x = 543,846,284.17
  5. Step 5: Solve for x
    x = 543,846,284.17/28,513.01
  6. Step 6: Final answer
    x = 19,073.62

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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.