Home / 38,826.51-53,579.99-21,830.77

Finding the Fourth Proportional to 38,826.51, 53,579.99 and 21,830.77

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Solution

The fourth proportional to 38,826.51, 53,579.99 and 21,830.77 is: 30,126.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,826.51 : 53,579.99 = 21,830.77 : x
  2. Step 2: Convert to fraction form
    38,826.51/53,579.99 = 21,830.77/x
  3. Step 3: Cross multiply
    38,826.51x = 53,579.99 × 21,830.77
  4. Step 4: Simplify right side
    38,826.51x = 1,169,692,438.29
  5. Step 5: Solve for x
    x = 1,169,692,438.29/38,826.51
  6. Step 6: Final answer
    x = 30,126.13

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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.