Home / 19,578.89-29,368.20-4,788.02

Finding the Fourth Proportional to 19,578.89, 29,368.20 and 4,788.02

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Solution

The fourth proportional to 19,578.89, 29,368.20 and 4,788.02 is: 7,182.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,578.89 : 29,368.20 = 4,788.02 : x
  2. Step 2: Convert to fraction form
    19,578.89/29,368.20 = 4,788.02/x
  3. Step 3: Cross multiply
    19,578.89x = 29,368.20 × 4,788.02
  4. Step 4: Simplify right side
    19,578.89x = 140,615,528.96
  5. Step 5: Solve for x
    x = 140,615,528.96/19,578.89
  6. Step 6: Final answer
    x = 7,182.00

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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.