Home / 21,967.04-30,312.60-13,013.03

Finding the Fourth Proportional to 21,967.04, 30,312.60 and 13,013.03

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Solution

The fourth proportional to 21,967.04, 30,312.60 and 13,013.03 is: 17,956.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,967.04 : 30,312.60 = 13,013.03 : x
  2. Step 2: Convert to fraction form
    21,967.04/30,312.60 = 13,013.03/x
  3. Step 3: Cross multiply
    21,967.04x = 30,312.60 × 13,013.03
  4. Step 4: Simplify right side
    21,967.04x = 394,458,800.16
  5. Step 5: Solve for x
    x = 394,458,800.16/21,967.04
  6. Step 6: Final answer
    x = 17,956.85

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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.