Home / 39,316.05-54,256.37-21,411.14

Finding the Fourth Proportional to 39,316.05, 54,256.37 and 21,411.14

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Solution

The fourth proportional to 39,316.05, 54,256.37 and 21,411.14 is: 29,547.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,316.05 : 54,256.37 = 21,411.14 : x
  2. Step 2: Convert to fraction form
    39,316.05/54,256.37 = 21,411.14/x
  3. Step 3: Cross multiply
    39,316.05x = 54,256.37 × 21,411.14
  4. Step 4: Simplify right side
    39,316.05x = 1,161,690,355.62
  5. Step 5: Solve for x
    x = 1,161,690,355.62/39,316.05
  6. Step 6: Final answer
    x = 29,547.48

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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.