Home / 39,038.67-53,873.40-21,133.83

Finding the Fourth Proportional to 39,038.67, 53,873.40 and 21,133.83

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Solution

The fourth proportional to 39,038.67, 53,873.40 and 21,133.83 is: 29,164.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,038.67 : 53,873.40 = 21,133.83 : x
  2. Step 2: Convert to fraction form
    39,038.67/53,873.40 = 21,133.83/x
  3. Step 3: Cross multiply
    39,038.67x = 53,873.40 × 21,133.83
  4. Step 4: Simplify right side
    39,038.67x = 1,138,551,277.12
  5. Step 5: Solve for x
    x = 1,138,551,277.12/39,038.67
  6. Step 6: Final answer
    x = 29,164.70

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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.