Home / 42,548.10-63,831.36-12,965.16

Finding the Fourth Proportional to 42,548.10, 63,831.36 and 12,965.16

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Solution

The fourth proportional to 42,548.10, 63,831.36 and 12,965.16 is: 19,450.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,548.10 : 63,831.36 = 12,965.16 : x
  2. Step 2: Convert to fraction form
    42,548.10/63,831.36 = 12,965.16/x
  3. Step 3: Cross multiply
    42,548.10x = 63,831.36 × 12,965.16
  4. Step 4: Simplify right side
    42,548.10x = 827,583,795.42
  5. Step 5: Solve for x
    x = 827,583,795.42/42,548.10
  6. Step 6: Final answer
    x = 19,450.55

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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.