Home / 38,580.28-53,242.22-21,812.28

Finding the Fourth Proportional to 38,580.28, 53,242.22 and 21,812.28

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Solution

The fourth proportional to 38,580.28, 53,242.22 and 21,812.28 is: 30,101.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,580.28 : 53,242.22 = 21,812.28 : x
  2. Step 2: Convert to fraction form
    38,580.28/53,242.22 = 21,812.28/x
  3. Step 3: Cross multiply
    38,580.28x = 53,242.22 × 21,812.28
  4. Step 4: Simplify right side
    38,580.28x = 1,161,334,210.46
  5. Step 5: Solve for x
    x = 1,161,334,210.46/38,580.28
  6. Step 6: Final answer
    x = 30,101.76

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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.