Home / 19,178.95-28,730.76-17,089.15

Finding the Fourth Proportional to 19,178.95, 28,730.76 and 17,089.15

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Solution

The fourth proportional to 19,178.95, 28,730.76 and 17,089.15 is: 25,600.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,178.95 : 28,730.76 = 17,089.15 : x
  2. Step 2: Convert to fraction form
    19,178.95/28,730.76 = 17,089.15/x
  3. Step 3: Cross multiply
    19,178.95x = 28,730.76 × 17,089.15
  4. Step 4: Simplify right side
    19,178.95x = 490,984,267.25
  5. Step 5: Solve for x
    x = 490,984,267.25/19,178.95
  6. Step 6: Final answer
    x = 25,600.16

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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.