Home / 28,968.84-43,459.36-9,995.20

Finding the Fourth Proportional to 28,968.84, 43,459.36 and 9,995.20

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Solution

The fourth proportional to 28,968.84, 43,459.36 and 9,995.20 is: 14,994.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,968.84 : 43,459.36 = 9,995.20 : x
  2. Step 2: Convert to fraction form
    28,968.84/43,459.36 = 9,995.20/x
  3. Step 3: Cross multiply
    28,968.84x = 43,459.36 × 9,995.20
  4. Step 4: Simplify right side
    28,968.84x = 434,384,995.07
  5. Step 5: Solve for x
    x = 434,384,995.07/28,968.84
  6. Step 6: Final answer
    x = 14,994.90

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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.