Home / 42,659.84-64,024.32-21,889.28

Finding the Fourth Proportional to 42,659.84, 64,024.32 and 21,889.28

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Solution

The fourth proportional to 42,659.84, 64,024.32 and 21,889.28 is: 32,851.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,659.84 : 64,024.32 = 21,889.28 : x
  2. Step 2: Convert to fraction form
    42,659.84/64,024.32 = 21,889.28/x
  3. Step 3: Cross multiply
    42,659.84x = 64,024.32 × 21,889.28
  4. Step 4: Simplify right side
    42,659.84x = 1,401,446,267.29
  5. Step 5: Solve for x
    x = 1,401,446,267.29/42,659.84
  6. Step 6: Final answer
    x = 32,851.65

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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.