Home / 21,302.03-31,953.06-21,271.26

Finding the Fourth Proportional to 21,302.03, 31,953.06 and 21,271.26

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Solution

The fourth proportional to 21,302.03, 31,953.06 and 21,271.26 is: 31,906.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,302.03 : 31,953.06 = 21,271.26 : x
  2. Step 2: Convert to fraction form
    21,302.03/31,953.06 = 21,271.26/x
  3. Step 3: Cross multiply
    21,302.03x = 31,953.06 × 21,271.26
  4. Step 4: Simplify right side
    21,302.03x = 679,681,847.06
  5. Step 5: Solve for x
    x = 679,681,847.06/21,302.03
  6. Step 6: Final answer
    x = 31,906.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.