Home / 39,812.29-59,632.31-18,720.73

Finding the Fourth Proportional to 39,812.29, 59,632.31 and 18,720.73

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Solution

The fourth proportional to 39,812.29, 59,632.31 and 18,720.73 is: 28,040.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,812.29 : 59,632.31 = 18,720.73 : x
  2. Step 2: Convert to fraction form
    39,812.29/59,632.31 = 18,720.73/x
  3. Step 3: Cross multiply
    39,812.29x = 59,632.31 × 18,720.73
  4. Step 4: Simplify right side
    39,812.29x = 1,116,360,272.51
  5. Step 5: Solve for x
    x = 1,116,360,272.51/39,812.29
  6. Step 6: Final answer
    x = 28,040.60

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1.5x scale

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.