Home / 21,937.04-30,271.32-12,503.84

Finding the Fourth Proportional to 21,937.04, 30,271.32 and 12,503.84

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Solution

The fourth proportional to 21,937.04, 30,271.32 and 12,503.84 is: 17,254.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,937.04 : 30,271.32 = 12,503.84 : x
  2. Step 2: Convert to fraction form
    21,937.04/30,271.32 = 12,503.84/x
  3. Step 3: Cross multiply
    21,937.04x = 30,271.32 × 12,503.84
  4. Step 4: Simplify right side
    21,937.04x = 378,507,741.87
  5. Step 5: Solve for x
    x = 378,507,741.87/21,937.04
  6. Step 6: Final answer
    x = 17,254.28

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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.