Home / 27,888.93-38,521.04-20,846.79

Finding the Fourth Proportional to 27,888.93, 38,521.04 and 20,846.79

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Solution

The fourth proportional to 27,888.93, 38,521.04 and 20,846.79 is: 28,794.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,888.93 : 38,521.04 = 20,846.79 : x
  2. Step 2: Convert to fraction form
    27,888.93/38,521.04 = 20,846.79/x
  3. Step 3: Cross multiply
    27,888.93x = 38,521.04 × 20,846.79
  4. Step 4: Simplify right side
    27,888.93x = 803,039,927.23
  5. Step 5: Solve for x
    x = 803,039,927.23/27,888.93
  6. Step 6: Final answer
    x = 28,794.22

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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.