Home / 19,391.16-29,089.70-9,898.30

Finding the Fourth Proportional to 19,391.16, 29,089.70 and 9,898.30

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Solution

The fourth proportional to 19,391.16, 29,089.70 and 9,898.30 is: 14,848.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,391.16 : 29,089.70 = 9,898.30 : x
  2. Step 2: Convert to fraction form
    19,391.16/29,089.70 = 9,898.30/x
  3. Step 3: Cross multiply
    19,391.16x = 29,089.70 × 9,898.30
  4. Step 4: Simplify right side
    19,391.16x = 287,938,577.51
  5. Step 5: Solve for x
    x = 287,938,577.51/19,391.16
  6. Step 6: Final answer
    x = 14,848.96

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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.