Home / 19,870.33-27,423.43-11,916.93

Finding the Fourth Proportional to 19,870.33, 27,423.43 and 11,916.93

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Solution

The fourth proportional to 19,870.33, 27,423.43 and 11,916.93 is: 16,446.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,870.33 : 27,423.43 = 11,916.93 : x
  2. Step 2: Convert to fraction form
    19,870.33/27,423.43 = 11,916.93/x
  3. Step 3: Cross multiply
    19,870.33x = 27,423.43 × 11,916.93
  4. Step 4: Simplify right side
    19,870.33x = 326,802,988.35
  5. Step 5: Solve for x
    x = 326,802,988.35/19,870.33
  6. Step 6: Final answer
    x = 16,446.79

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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.