Home / 39,411.07-54,387.07-21,506.02

Finding the Fourth Proportional to 39,411.07, 54,387.07 and 21,506.02

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Solution

The fourth proportional to 39,411.07, 54,387.07 and 21,506.02 is: 29,678.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,411.07 : 54,387.07 = 21,506.02 : x
  2. Step 2: Convert to fraction form
    39,411.07/54,387.07 = 21,506.02/x
  3. Step 3: Cross multiply
    39,411.07x = 54,387.07 × 21,506.02
  4. Step 4: Simplify right side
    39,411.07x = 1,169,649,415.16
  5. Step 5: Solve for x
    x = 1,169,649,415.16/39,411.07
  6. Step 6: Final answer
    x = 29,678.19

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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.