Home / 21,703.48-29,953.56-12,271.84

Finding the Fourth Proportional to 21,703.48, 29,953.56 and 12,271.84

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Solution

The fourth proportional to 21,703.48, 29,953.56 and 12,271.84 is: 16,936.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,703.48 : 29,953.56 = 12,271.84 : x
  2. Step 2: Convert to fraction form
    21,703.48/29,953.56 = 12,271.84/x
  3. Step 3: Cross multiply
    21,703.48x = 29,953.56 × 12,271.84
  4. Step 4: Simplify right side
    21,703.48x = 367,585,295.75
  5. Step 5: Solve for x
    x = 367,585,295.75/21,703.48
  6. Step 6: Final answer
    x = 16,936.70

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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.