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Finding the Fourth Proportional to 19,482.40, 29,223.60 and 12,062.80

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Solution

The fourth proportional to 19,482.40, 29,223.60 and 12,062.80 is: 18,094.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,482.40 : 29,223.60 = 12,062.80 : x
  2. Step 2: Convert to fraction form
    19,482.40/29,223.60 = 12,062.80/x
  3. Step 3: Cross multiply
    19,482.40x = 29,223.60 × 12,062.80
  4. Step 4: Simplify right side
    19,482.40x = 352,518,442.08
  5. Step 5: Solve for x
    x = 352,518,442.08/19,482.40
  6. Step 6: Final answer
    x = 18,094.20

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.