Home / 27,831.42-38,407.86-15,256.08

Finding the Fourth Proportional to 27,831.42, 38,407.86 and 15,256.08

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Solution

The fourth proportional to 27,831.42, 38,407.86 and 15,256.08 is: 21,053.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,831.42 : 38,407.86 = 15,256.08 : x
  2. Step 2: Convert to fraction form
    27,831.42/38,407.86 = 15,256.08/x
  3. Step 3: Cross multiply
    27,831.42x = 38,407.86 × 15,256.08
  4. Step 4: Simplify right side
    27,831.42x = 585,953,384.79
  5. Step 5: Solve for x
    x = 585,953,384.79/27,831.42
  6. Step 6: Final answer
    x = 21,053.66

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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.