Home / 42,639.65-63,959.63-13,057.36

Finding the Fourth Proportional to 42,639.65, 63,959.63 and 13,057.36

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Solution

The fourth proportional to 42,639.65, 63,959.63 and 13,057.36 is: 19,586.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,639.65 : 63,959.63 = 13,057.36 : x
  2. Step 2: Convert to fraction form
    42,639.65/63,959.63 = 13,057.36/x
  3. Step 3: Cross multiply
    42,639.65x = 63,959.63 × 13,057.36
  4. Step 4: Simplify right side
    42,639.65x = 835,143,738.16
  5. Step 5: Solve for x
    x = 835,143,738.16/42,639.65
  6. Step 6: Final answer
    x = 19,586.08

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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.