Home / 53,021.09-79,529.55-17,960.74

Finding the Fourth Proportional to 53,021.09, 79,529.55 and 17,960.74

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Solution

The fourth proportional to 53,021.09, 79,529.55 and 17,960.74 is: 26,940.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,021.09 : 79,529.55 = 17,960.74 : x
  2. Step 2: Convert to fraction form
    53,021.09/79,529.55 = 17,960.74/x
  3. Step 3: Cross multiply
    53,021.09x = 79,529.55 × 17,960.74
  4. Step 4: Simplify right side
    53,021.09x = 1,428,409,569.87
  5. Step 5: Solve for x
    x = 1,428,409,569.87/53,021.09
  6. Step 6: Final answer
    x = 26,940.40

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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.