Home / 19,025.84-28,538.08-4,985.75

Finding the Fourth Proportional to 19,025.84, 28,538.08 and 4,985.75

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Solution

The fourth proportional to 19,025.84, 28,538.08 and 4,985.75 is: 7,478.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,025.84 : 28,538.08 = 4,985.75 : x
  2. Step 2: Convert to fraction form
    19,025.84/28,538.08 = 4,985.75/x
  3. Step 3: Cross multiply
    19,025.84x = 28,538.08 × 4,985.75
  4. Step 4: Simplify right side
    19,025.84x = 142,283,826.30
  5. Step 5: Solve for x
    x = 142,283,826.30/19,025.84
  6. Step 6: Final answer
    x = 7,478.45

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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.