Home / 45,927.36-68,890.98-12,647.64

Finding the Fourth Proportional to 45,927.36, 68,890.98 and 12,647.64

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Solution

The fourth proportional to 45,927.36, 68,890.98 and 12,647.64 is: 18,971.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,927.36 : 68,890.98 = 12,647.64 : x
  2. Step 2: Convert to fraction form
    45,927.36/68,890.98 = 12,647.64/x
  3. Step 3: Cross multiply
    45,927.36x = 68,890.98 × 12,647.64
  4. Step 4: Simplify right side
    45,927.36x = 871,308,314.29
  5. Step 5: Solve for x
    x = 871,308,314.29/45,927.36
  6. Step 6: Final answer
    x = 18,971.44

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1.5x scale

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.