Home / 19,210.87-28,800.98-12,892.46

Finding the Fourth Proportional to 19,210.87, 28,800.98 and 12,892.46

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Solution

The fourth proportional to 19,210.87, 28,800.98 and 12,892.46 is: 19,328.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,210.87 : 28,800.98 = 12,892.46 : x
  2. Step 2: Convert to fraction form
    19,210.87/28,800.98 = 12,892.46/x
  3. Step 3: Cross multiply
    19,210.87x = 28,800.98 × 12,892.46
  4. Step 4: Simplify right side
    19,210.87x = 371,315,418.15
  5. Step 5: Solve for x
    x = 371,315,418.15/19,210.87
  6. Step 6: Final answer
    x = 19,328.41

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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.