Home / 19,039.84-28,430.16-16,800

Finding the Fourth Proportional to 19,039.84, 28,430.16 and 16,800

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Solution

The fourth proportional to 19,039.84, 28,430.16 and 16,800 is: 25,085.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,039.84 : 28,430.16 = 16,800 : x
  2. Step 2: Convert to fraction form
    19,039.84/28,430.16 = 16,800/x
  3. Step 3: Cross multiply
    19,039.84x = 28,430.16 × 16,800
  4. Step 4: Simplify right side
    19,039.84x = 477,626,688
  5. Step 5: Solve for x
    x = 477,626,688/19,039.84
  6. Step 6: Final answer
    x = 25,085.65

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.