Home / 27,916.55-38,526.79-15,816.94

Finding the Fourth Proportional to 27,916.55, 38,526.79 and 15,816.94

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Solution

The fourth proportional to 27,916.55, 38,526.79 and 15,816.94 is: 21,828.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,916.55 : 38,526.79 = 15,816.94 : x
  2. Step 2: Convert to fraction form
    27,916.55/38,526.79 = 15,816.94/x
  3. Step 3: Cross multiply
    27,916.55x = 38,526.79 × 15,816.94
  4. Step 4: Simplify right side
    27,916.55x = 609,375,733.19
  5. Step 5: Solve for x
    x = 609,375,733.19/27,916.55
  6. Step 6: Final answer
    x = 21,828.48

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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.