Home / 22,515.36-31,066.92-14,128.08

Finding the Fourth Proportional to 22,515.36, 31,066.92 and 14,128.08

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Solution

The fourth proportional to 22,515.36, 31,066.92 and 14,128.08 is: 19,494.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,515.36 : 31,066.92 = 14,128.08 : x
  2. Step 2: Convert to fraction form
    22,515.36/31,066.92 = 14,128.08/x
  3. Step 3: Cross multiply
    22,515.36x = 31,066.92 × 14,128.08
  4. Step 4: Simplify right side
    22,515.36x = 438,915,931.11
  5. Step 5: Solve for x
    x = 438,915,931.11/22,515.36
  6. Step 6: Final answer
    x = 19,494.07

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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.