Home / 27,358.95-41,038.36-21,128.03

Finding the Fourth Proportional to 27,358.95, 41,038.36 and 21,128.03

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Solution

The fourth proportional to 27,358.95, 41,038.36 and 21,128.03 is: 31,691.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,358.95 : 41,038.36 = 21,128.03 : x
  2. Step 2: Convert to fraction form
    27,358.95/41,038.36 = 21,128.03/x
  3. Step 3: Cross multiply
    27,358.95x = 41,038.36 × 21,128.03
  4. Step 4: Simplify right side
    27,358.95x = 867,059,701.23
  5. Step 5: Solve for x
    x = 867,059,701.23/27,358.95
  6. Step 6: Final answer
    x = 31,691.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.