Home / 39,069.85-53,916.53-21,164.80

Finding the Fourth Proportional to 39,069.85, 53,916.53 and 21,164.80

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Solution

The fourth proportional to 39,069.85, 53,916.53 and 21,164.80 is: 29,207.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,069.85 : 53,916.53 = 21,164.80 : x
  2. Step 2: Convert to fraction form
    39,069.85/53,916.53 = 21,164.80/x
  3. Step 3: Cross multiply
    39,069.85x = 53,916.53 × 21,164.80
  4. Step 4: Simplify right side
    39,069.85x = 1,141,132,574.14
  5. Step 5: Solve for x
    x = 1,141,132,574.14/39,069.85
  6. Step 6: Final answer
    x = 29,207.50

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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.