Home / 27,558.51-38,048.99-21,173.69

Finding the Fourth Proportional to 27,558.51, 38,048.99 and 21,173.69

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Solution

The fourth proportional to 27,558.51, 38,048.99 and 21,173.69 is: 29,233.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,558.51 : 38,048.99 = 21,173.69 : x
  2. Step 2: Convert to fraction form
    27,558.51/38,048.99 = 21,173.69/x
  3. Step 3: Cross multiply
    27,558.51x = 38,048.99 × 21,173.69
  4. Step 4: Simplify right side
    27,558.51x = 805,637,222.96
  5. Step 5: Solve for x
    x = 805,637,222.96/27,558.51
  6. Step 6: Final answer
    x = 29,233.70

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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.