Home / 19,315.78-26,668.58-14,831.48

Finding the Fourth Proportional to 19,315.78, 26,668.58 and 14,831.48

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Solution

The fourth proportional to 19,315.78, 26,668.58 and 14,831.48 is: 20,477.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,315.78 : 26,668.58 = 14,831.48 : x
  2. Step 2: Convert to fraction form
    19,315.78/26,668.58 = 14,831.48/x
  3. Step 3: Cross multiply
    19,315.78x = 26,668.58 × 14,831.48
  4. Step 4: Simplify right side
    19,315.78x = 395,534,503.41
  5. Step 5: Solve for x
    x = 395,534,503.41/19,315.78
  6. Step 6: Final answer
    x = 20,477.28

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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.