Home / 39,069.04-53,915.30-21,164.08

Finding the Fourth Proportional to 39,069.04, 53,915.30 and 21,164.08

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Solution

The fourth proportional to 39,069.04, 53,915.30 and 21,164.08 is: 29,206.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,069.04 : 53,915.30 = 21,164.08 : x
  2. Step 2: Convert to fraction form
    39,069.04/53,915.30 = 21,164.08/x
  3. Step 3: Cross multiply
    39,069.04x = 53,915.30 × 21,164.08
  4. Step 4: Simplify right side
    39,069.04x = 1,141,067,722.42
  5. Step 5: Solve for x
    x = 1,141,067,722.42/39,069.04
  6. Step 6: Final answer
    x = 29,206.44

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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.