Home / 19,706.28-29,490.08-12,314.22

Finding the Fourth Proportional to 19,706.28, 29,490.08 and 12,314.22

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Solution

The fourth proportional to 19,706.28, 29,490.08 and 12,314.22 is: 18,428.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,706.28 : 29,490.08 = 12,314.22 : x
  2. Step 2: Convert to fraction form
    19,706.28/29,490.08 = 12,314.22/x
  3. Step 3: Cross multiply
    19,706.28x = 29,490.08 × 12,314.22
  4. Step 4: Simplify right side
    19,706.28x = 363,147,271.37
  5. Step 5: Solve for x
    x = 363,147,271.37/19,706.28
  6. Step 6: Final answer
    x = 18,428.00

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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.