Home / 27,220.04-40,664.69-17,279.72

Finding the Fourth Proportional to 27,220.04, 40,664.69 and 17,279.72

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Solution

The fourth proportional to 27,220.04, 40,664.69 and 17,279.72 is: 25,814.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,220.04 : 40,664.69 = 17,279.72 : x
  2. Step 2: Convert to fraction form
    27,220.04/40,664.69 = 17,279.72/x
  3. Step 3: Cross multiply
    27,220.04x = 40,664.69 × 17,279.72
  4. Step 4: Simplify right side
    27,220.04x = 702,674,457.09
  5. Step 5: Solve for x
    x = 702,674,457.09/27,220.04
  6. Step 6: Final answer
    x = 25,814.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.