Home / 22,623.04-31,220.63-13,668.81

Finding the Fourth Proportional to 22,623.04, 31,220.63 and 13,668.81

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Solution

The fourth proportional to 22,623.04, 31,220.63 and 13,668.81 is: 18,863.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,623.04 : 31,220.63 = 13,668.81 : x
  2. Step 2: Convert to fraction form
    22,623.04/31,220.63 = 13,668.81/x
  3. Step 3: Cross multiply
    22,623.04x = 31,220.63 × 13,668.81
  4. Step 4: Simplify right side
    22,623.04x = 426,748,826.90
  5. Step 5: Solve for x
    x = 426,748,826.90/22,623.04
  6. Step 6: Final answer
    x = 18,863.46

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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.