Home / 31,136.06-42,968.58-19,207.28

Finding the Fourth Proportional to 31,136.06, 42,968.58 and 19,207.28

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Solution

The fourth proportional to 31,136.06, 42,968.58 and 19,207.28 is: 26,506.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,136.06 : 42,968.58 = 19,207.28 : x
  2. Step 2: Convert to fraction form
    31,136.06/42,968.58 = 19,207.28/x
  3. Step 3: Cross multiply
    31,136.06x = 42,968.58 × 19,207.28
  4. Step 4: Simplify right side
    31,136.06x = 825,309,547.26
  5. Step 5: Solve for x
    x = 825,309,547.26/31,136.06
  6. Step 6: Final answer
    x = 26,506.55

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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.