Home / 19,220.13-28,830.03-6,072.50

Finding the Fourth Proportional to 19,220.13, 28,830.03 and 6,072.50

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Solution

The fourth proportional to 19,220.13, 28,830.03 and 6,072.50 is: 9,108.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,220.13 : 28,830.03 = 6,072.50 : x
  2. Step 2: Convert to fraction form
    19,220.13/28,830.03 = 6,072.50/x
  3. Step 3: Cross multiply
    19,220.13x = 28,830.03 × 6,072.50
  4. Step 4: Simplify right side
    19,220.13x = 175,070,326.81
  5. Step 5: Solve for x
    x = 175,070,326.81/19,220.13
  6. Step 6: Final answer
    x = 9,108.70

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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.