Home / 27,831.84-38,407.96-15,085.14

Finding the Fourth Proportional to 27,831.84, 38,407.96 and 15,085.14

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Solution

The fourth proportional to 27,831.84, 38,407.96 and 15,085.14 is: 20,817.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,831.84 : 38,407.96 = 15,085.14 : x
  2. Step 2: Convert to fraction form
    27,831.84/38,407.96 = 15,085.14/x
  3. Step 3: Cross multiply
    27,831.84x = 38,407.96 × 15,085.14
  4. Step 4: Simplify right side
    27,831.84x = 579,389,453.71
  5. Step 5: Solve for x
    x = 579,389,453.71/27,831.84
  6. Step 6: Final answer
    x = 20,817.50

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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.