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Finding the Fourth Proportional to 19,444.40, 29,123.40 and 19,012.40

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Solution

The fourth proportional to 19,444.40, 29,123.40 and 19,012.40 is: 28,476.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,444.40 : 29,123.40 = 19,012.40 : x
  2. Step 2: Convert to fraction form
    19,444.40/29,123.40 = 19,012.40/x
  3. Step 3: Cross multiply
    19,444.40x = 29,123.40 × 19,012.40
  4. Step 4: Simplify right side
    19,444.40x = 553,705,730.16
  5. Step 5: Solve for x
    x = 553,705,730.16/19,444.40
  6. Step 6: Final answer
    x = 28,476.36

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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.