Home / 42,343.56-63,533.16-21,303

Finding the Fourth Proportional to 42,343.56, 63,533.16 and 21,303

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Solution

The fourth proportional to 42,343.56, 63,533.16 and 21,303 is: 31,963.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,343.56 : 63,533.16 = 21,303 : x
  2. Step 2: Convert to fraction form
    42,343.56/63,533.16 = 21,303/x
  3. Step 3: Cross multiply
    42,343.56x = 63,533.16 × 21,303
  4. Step 4: Simplify right side
    42,343.56x = 1,353,446,907.48
  5. Step 5: Solve for x
    x = 1,353,446,907.48/42,343.56
  6. Step 6: Final answer
    x = 31,963.47

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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.