Home / 27,822.52-38,447.47-21,095.67

Finding the Fourth Proportional to 27,822.52, 38,447.47 and 21,095.67

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Solution

The fourth proportional to 27,822.52, 38,447.47 and 21,095.67 is: 29,151.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,822.52 : 38,447.47 = 21,095.67 : x
  2. Step 2: Convert to fraction form
    27,822.52/38,447.47 = 21,095.67/x
  3. Step 3: Cross multiply
    27,822.52x = 38,447.47 × 21,095.67
  4. Step 4: Simplify right side
    27,822.52x = 811,075,310.00
  5. Step 5: Solve for x
    x = 811,075,310.00/27,822.52
  6. Step 6: Final answer
    x = 29,151.75

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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.