Home / 39,069.46-53,916.12-21,164.47

Finding the Fourth Proportional to 39,069.46, 53,916.12 and 21,164.47

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Solution

The fourth proportional to 39,069.46, 53,916.12 and 21,164.47 is: 29,207.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,069.46 : 53,916.12 = 21,164.47 : x
  2. Step 2: Convert to fraction form
    39,069.46/53,916.12 = 21,164.47/x
  3. Step 3: Cross multiply
    39,069.46x = 53,916.12 × 21,164.47
  4. Step 4: Simplify right side
    39,069.46x = 1,141,106,104.26
  5. Step 5: Solve for x
    x = 1,141,106,104.26/39,069.46
  6. Step 6: Final answer
    x = 29,207.11

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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.