Home / 19,953.12-27,533.61-11,455.05

Finding the Fourth Proportional to 19,953.12, 27,533.61 and 11,455.05

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Solution

The fourth proportional to 19,953.12, 27,533.61 and 11,455.05 is: 15,807.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,953.12 : 27,533.61 = 11,455.05 : x
  2. Step 2: Convert to fraction form
    19,953.12/27,533.61 = 11,455.05/x
  3. Step 3: Cross multiply
    19,953.12x = 27,533.61 × 11,455.05
  4. Step 4: Simplify right side
    19,953.12x = 315,398,879.23
  5. Step 5: Solve for x
    x = 315,398,879.23/19,953.12
  6. Step 6: Final answer
    x = 15,807.00

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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.