Home / 28,871.16-39,831.48-16,930.14

Finding the Fourth Proportional to 28,871.16, 39,831.48 and 16,930.14

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Solution

The fourth proportional to 28,871.16, 39,831.48 and 16,930.14 is: 23,357.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,871.16 : 39,831.48 = 16,930.14 : x
  2. Step 2: Convert to fraction form
    28,871.16/39,831.48 = 16,930.14/x
  3. Step 3: Cross multiply
    28,871.16x = 39,831.48 × 16,930.14
  4. Step 4: Simplify right side
    28,871.16x = 674,352,532.81
  5. Step 5: Solve for x
    x = 674,352,532.81/28,871.16
  6. Step 6: Final answer
    x = 23,357.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.