Home / 35,155.08-52,715.58-12,978.90

Finding the Fourth Proportional to 35,155.08, 52,715.58 and 12,978.90

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Solution

The fourth proportional to 35,155.08, 52,715.58 and 12,978.90 is: 19,462.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,155.08 : 52,715.58 = 12,978.90 : x
  2. Step 2: Convert to fraction form
    35,155.08/52,715.58 = 12,978.90/x
  3. Step 3: Cross multiply
    35,155.08x = 52,715.58 × 12,978.90
  4. Step 4: Simplify right side
    35,155.08x = 684,190,241.26
  5. Step 5: Solve for x
    x = 684,190,241.26/35,155.08
  6. Step 6: Final answer
    x = 19,462.06

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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.