Home / 21,176.04-29,224.26-12,225.18

Finding the Fourth Proportional to 21,176.04, 29,224.26 and 12,225.18

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Solution

The fourth proportional to 21,176.04, 29,224.26 and 12,225.18 is: 16,871.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,176.04 : 29,224.26 = 12,225.18 : x
  2. Step 2: Convert to fraction form
    21,176.04/29,224.26 = 12,225.18/x
  3. Step 3: Cross multiply
    21,176.04x = 29,224.26 × 12,225.18
  4. Step 4: Simplify right side
    21,176.04x = 357,271,838.87
  5. Step 5: Solve for x
    x = 357,271,838.87/21,176.04
  6. Step 6: Final answer
    x = 16,871.51

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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.