Home / 27,838.16-38,418.60-15,263.72

Finding the Fourth Proportional to 27,838.16, 38,418.60 and 15,263.72

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Solution

The fourth proportional to 27,838.16, 38,418.60 and 15,263.72 is: 21,065.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,838.16 : 38,418.60 = 15,263.72 : x
  2. Step 2: Convert to fraction form
    27,838.16/38,418.60 = 15,263.72/x
  3. Step 3: Cross multiply
    27,838.16x = 38,418.60 × 15,263.72
  4. Step 4: Simplify right side
    27,838.16x = 586,410,753.19
  5. Step 5: Solve for x
    x = 586,410,753.19/27,838.16
  6. Step 6: Final answer
    x = 21,065.00

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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.