Home / 39,681.96-54,761.93-21,776.95

Finding the Fourth Proportional to 39,681.96, 54,761.93 and 21,776.95

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Solution

The fourth proportional to 39,681.96, 54,761.93 and 21,776.95 is: 30,052.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,681.96 : 54,761.93 = 21,776.95 : x
  2. Step 2: Convert to fraction form
    39,681.96/54,761.93 = 21,776.95/x
  3. Step 3: Cross multiply
    39,681.96x = 54,761.93 × 21,776.95
  4. Step 4: Simplify right side
    39,681.96x = 1,192,547,811.51
  5. Step 5: Solve for x
    x = 1,192,547,811.51/39,681.96
  6. Step 6: Final answer
    x = 30,052.64

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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.