Home / 38,430.47-57,643.63-11,776.54

Finding the Fourth Proportional to 38,430.47, 57,643.63 and 11,776.54

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Solution

The fourth proportional to 38,430.47, 57,643.63 and 11,776.54 is: 17,664.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,430.47 : 57,643.63 = 11,776.54 : x
  2. Step 2: Convert to fraction form
    38,430.47/57,643.63 = 11,776.54/x
  3. Step 3: Cross multiply
    38,430.47x = 57,643.63 × 11,776.54
  4. Step 4: Simplify right side
    38,430.47x = 678,842,340.89
  5. Step 5: Solve for x
    x = 678,842,340.89/38,430.47
  6. Step 6: Final answer
    x = 17,664.17

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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.