Home / 38,686.16-53,401.76-22,771.28

Finding the Fourth Proportional to 38,686.16, 53,401.76 and 22,771.28

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Solution

The fourth proportional to 38,686.16, 53,401.76 and 22,771.28 is: 31,433.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,686.16 : 53,401.76 = 22,771.28 : x
  2. Step 2: Convert to fraction form
    38,686.16/53,401.76 = 22,771.28/x
  3. Step 3: Cross multiply
    38,686.16x = 53,401.76 × 22,771.28
  4. Step 4: Simplify right side
    38,686.16x = 1,216,026,429.45
  5. Step 5: Solve for x
    x = 1,216,026,429.45/38,686.16
  6. Step 6: Final answer
    x = 31,433.11

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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.