Home / 20,277.63-28,002.36-19,173.18

Finding the Fourth Proportional to 20,277.63, 28,002.36 and 19,173.18

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Solution

The fourth proportional to 20,277.63, 28,002.36 and 19,173.18 is: 26,477.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,277.63 : 28,002.36 = 19,173.18 : x
  2. Step 2: Convert to fraction form
    20,277.63/28,002.36 = 19,173.18/x
  3. Step 3: Cross multiply
    20,277.63x = 28,002.36 × 19,173.18
  4. Step 4: Simplify right side
    20,277.63x = 536,894,288.70
  5. Step 5: Solve for x
    x = 536,894,288.70/20,277.63
  6. Step 6: Final answer
    x = 26,477.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.