Home / 27,984.65-38,606.55-18,412.23

Finding the Fourth Proportional to 27,984.65, 38,606.55 and 18,412.23

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Solution

The fourth proportional to 27,984.65, 38,606.55 and 18,412.23 is: 25,400.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,984.65 : 38,606.55 = 18,412.23 : x
  2. Step 2: Convert to fraction form
    27,984.65/38,606.55 = 18,412.23/x
  3. Step 3: Cross multiply
    27,984.65x = 38,606.55 × 18,412.23
  4. Step 4: Simplify right side
    27,984.65x = 710,832,678.11
  5. Step 5: Solve for x
    x = 710,832,678.11/27,984.65
  6. Step 6: Final answer
    x = 25,400.81

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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.