Home / 27,730.68-38,268.54-15,156.60

Finding the Fourth Proportional to 27,730.68, 38,268.54 and 15,156.60

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Solution

The fourth proportional to 27,730.68, 38,268.54 and 15,156.60 is: 20,916.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,730.68 : 38,268.54 = 15,156.60 : x
  2. Step 2: Convert to fraction form
    27,730.68/38,268.54 = 15,156.60/x
  3. Step 3: Cross multiply
    27,730.68x = 38,268.54 × 15,156.60
  4. Step 4: Simplify right side
    27,730.68x = 580,020,953.36
  5. Step 5: Solve for x
    x = 580,020,953.36/27,730.68
  6. Step 6: Final answer
    x = 20,916.22

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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.