Home / 27,136.04-40,703.69-12,139.19

Finding the Fourth Proportional to 27,136.04, 40,703.69 and 12,139.19

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Solution

The fourth proportional to 27,136.04, 40,703.69 and 12,139.19 is: 18,208.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,136.04 : 40,703.69 = 12,139.19 : x
  2. Step 2: Convert to fraction form
    27,136.04/40,703.69 = 12,139.19/x
  3. Step 3: Cross multiply
    27,136.04x = 40,703.69 × 12,139.19
  4. Step 4: Simplify right side
    27,136.04x = 494,109,886.42
  5. Step 5: Solve for x
    x = 494,109,886.42/27,136.04
  6. Step 6: Final answer
    x = 18,208.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.