Home / 39,939.53-59,927.07-21,215.01

Finding the Fourth Proportional to 39,939.53, 59,927.07 and 21,215.01

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Solution

The fourth proportional to 39,939.53, 59,927.07 and 21,215.01 is: 31,831.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,939.53 : 59,927.07 = 21,215.01 : x
  2. Step 2: Convert to fraction form
    39,939.53/59,927.07 = 21,215.01/x
  3. Step 3: Cross multiply
    39,939.53x = 59,927.07 × 21,215.01
  4. Step 4: Simplify right side
    39,939.53x = 1,271,353,389.32
  5. Step 5: Solve for x
    x = 1,271,353,389.32/39,939.53
  6. Step 6: Final answer
    x = 31,831.96

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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.