Home / 19,630.74-27,087.98-13,271.18

Finding the Fourth Proportional to 19,630.74, 27,087.98 and 13,271.18

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Solution

The fourth proportional to 19,630.74, 27,087.98 and 13,271.18 is: 18,312.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,630.74 : 27,087.98 = 13,271.18 : x
  2. Step 2: Convert to fraction form
    19,630.74/27,087.98 = 13,271.18/x
  3. Step 3: Cross multiply
    19,630.74x = 27,087.98 × 13,271.18
  4. Step 4: Simplify right side
    19,630.74x = 359,489,256.62
  5. Step 5: Solve for x
    x = 359,489,256.62/19,630.74
  6. Step 6: Final answer
    x = 18,312.57

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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.