Home / 53,347.28-80,020.94-18,287.24

Finding the Fourth Proportional to 53,347.28, 80,020.94 and 18,287.24

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Solution

The fourth proportional to 53,347.28, 80,020.94 and 18,287.24 is: 27,430.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,347.28 : 80,020.94 = 18,287.24 : x
  2. Step 2: Convert to fraction form
    53,347.28/80,020.94 = 18,287.24/x
  3. Step 3: Cross multiply
    53,347.28x = 80,020.94 × 18,287.24
  4. Step 4: Simplify right side
    53,347.28x = 1,463,362,134.81
  5. Step 5: Solve for x
    x = 1,463,362,134.81/53,347.28
  6. Step 6: Final answer
    x = 27,430.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.