Home / 28,579.36-42,875.30-9,603.32

Finding the Fourth Proportional to 28,579.36, 42,875.30 and 9,603.32

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Solution

The fourth proportional to 28,579.36, 42,875.30 and 9,603.32 is: 14,407.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,579.36 : 42,875.30 = 9,603.32 : x
  2. Step 2: Convert to fraction form
    28,579.36/42,875.30 = 9,603.32/x
  3. Step 3: Cross multiply
    28,579.36x = 42,875.30 × 9,603.32
  4. Step 4: Simplify right side
    28,579.36x = 411,745,035.63
  5. Step 5: Solve for x
    x = 411,745,035.63/28,579.36
  6. Step 6: Final answer
    x = 14,407.08

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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.