Home / 42,664.32-63,996-19,274.40

Finding the Fourth Proportional to 42,664.32, 63,996 and 19,274.40

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Solution

The fourth proportional to 42,664.32, 63,996 and 19,274.40 is: 28,911.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,664.32 : 63,996 = 19,274.40 : x
  2. Step 2: Convert to fraction form
    42,664.32/63,996 = 19,274.40/x
  3. Step 3: Cross multiply
    42,664.32x = 63,996 × 19,274.40
  4. Step 4: Simplify right side
    42,664.32x = 1,233,484,502.40
  5. Step 5: Solve for x
    x = 1,233,484,502.40/42,664.32
  6. Step 6: Final answer
    x = 28,911.38

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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.