Home / 39,316.93-54,255.49-21,411.83

Finding the Fourth Proportional to 39,316.93, 54,255.49 and 21,411.83

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Solution

The fourth proportional to 39,316.93, 54,255.49 and 21,411.83 is: 29,547.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,316.93 : 54,255.49 = 21,411.83 : x
  2. Step 2: Convert to fraction form
    39,316.93/54,255.49 = 21,411.83/x
  3. Step 3: Cross multiply
    39,316.93x = 54,255.49 × 21,411.83
  4. Step 4: Simplify right side
    39,316.93x = 1,161,709,410.56
  5. Step 5: Solve for x
    x = 1,161,709,410.56/39,316.93
  6. Step 6: Final answer
    x = 29,547.31

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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.