Home / 27,142.74-37,457.64-15,208.65

Finding the Fourth Proportional to 27,142.74, 37,457.64 and 15,208.65

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Solution

The fourth proportional to 27,142.74, 37,457.64 and 15,208.65 is: 20,988.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,142.74 : 37,457.64 = 15,208.65 : x
  2. Step 2: Convert to fraction form
    27,142.74/37,457.64 = 15,208.65/x
  3. Step 3: Cross multiply
    27,142.74x = 37,457.64 × 15,208.65
  4. Step 4: Simplify right side
    27,142.74x = 569,680,136.59
  5. Step 5: Solve for x
    x = 569,680,136.59/27,142.74
  6. Step 6: Final answer
    x = 20,988.31

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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.