Home / 28,515.98-42,770.63-10,973.54

Finding the Fourth Proportional to 28,515.98, 42,770.63 and 10,973.54

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Solution

The fourth proportional to 28,515.98, 42,770.63 and 10,973.54 is: 16,459.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,515.98 : 42,770.63 = 10,973.54 : x
  2. Step 2: Convert to fraction form
    28,515.98/42,770.63 = 10,973.54/x
  3. Step 3: Cross multiply
    28,515.98x = 42,770.63 × 10,973.54
  4. Step 4: Simplify right side
    28,515.98x = 469,345,219.13
  5. Step 5: Solve for x
    x = 469,345,219.13/28,515.98
  6. Step 6: Final answer
    x = 16,459.02

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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.