Home / 17,880.35-26,820.72-5,400.50

Finding the Fourth Proportional to 17,880.35, 26,820.72 and 5,400.50

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Solution

The fourth proportional to 17,880.35, 26,820.72 and 5,400.50 is: 8,100.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,880.35 : 26,820.72 = 5,400.50 : x
  2. Step 2: Convert to fraction form
    17,880.35/26,820.72 = 5,400.50/x
  3. Step 3: Cross multiply
    17,880.35x = 26,820.72 × 5,400.50
  4. Step 4: Simplify right side
    17,880.35x = 144,845,164.26
  5. Step 5: Solve for x
    x = 144,845,164.26/17,880.35
  6. Step 6: Final answer
    x = 8,100.80

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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.