Home / 19,315.45-28,967.03-9,954.28

Finding the Fourth Proportional to 19,315.45, 28,967.03 and 9,954.28

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Solution

The fourth proportional to 19,315.45, 28,967.03 and 9,954.28 is: 14,928.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,315.45 : 28,967.03 = 9,954.28 : x
  2. Step 2: Convert to fraction form
    19,315.45/28,967.03 = 9,954.28/x
  3. Step 3: Cross multiply
    19,315.45x = 28,967.03 × 9,954.28
  4. Step 4: Simplify right side
    19,315.45x = 288,345,927.39
  5. Step 5: Solve for x
    x = 288,345,927.39/19,315.45
  6. Step 6: Final answer
    x = 14,928.25

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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.