Home / 19,740.08-27,240.14-10,785.80

Finding the Fourth Proportional to 19,740.08, 27,240.14 and 10,785.80

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Solution

The fourth proportional to 19,740.08, 27,240.14 and 10,785.80 is: 14,883.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,740.08 : 27,240.14 = 10,785.80 : x
  2. Step 2: Convert to fraction form
    19,740.08/27,240.14 = 10,785.80/x
  3. Step 3: Cross multiply
    19,740.08x = 27,240.14 × 10,785.80
  4. Step 4: Simplify right side
    19,740.08x = 293,806,702.01
  5. Step 5: Solve for x
    x = 293,806,702.01/19,740.08
  6. Step 6: Final answer
    x = 14,883.76

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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.