Home / 39,476.16-54,476.15-21,570.71

Finding the Fourth Proportional to 39,476.16, 54,476.15 and 21,570.71

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Solution

The fourth proportional to 39,476.16, 54,476.15 and 21,570.71 is: 29,767.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,476.16 : 54,476.15 = 21,570.71 : x
  2. Step 2: Convert to fraction form
    39,476.16/54,476.15 = 21,570.71/x
  3. Step 3: Cross multiply
    39,476.16x = 54,476.15 × 21,570.71
  4. Step 4: Simplify right side
    39,476.16x = 1,175,088,853.33
  5. Step 5: Solve for x
    x = 1,175,088,853.33/39,476.16
  6. Step 6: Final answer
    x = 29,767.05

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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.