Home / 28,537.18-39,386.70-19,122.10

Finding the Fourth Proportional to 28,537.18, 39,386.70 and 19,122.10

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Solution

The fourth proportional to 28,537.18, 39,386.70 and 19,122.10 is: 26,392.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,537.18 : 39,386.70 = 19,122.10 : x
  2. Step 2: Convert to fraction form
    28,537.18/39,386.70 = 19,122.10/x
  3. Step 3: Cross multiply
    28,537.18x = 39,386.70 × 19,122.10
  4. Step 4: Simplify right side
    28,537.18x = 753,156,416.07
  5. Step 5: Solve for x
    x = 753,156,416.07/28,537.18
  6. Step 6: Final answer
    x = 26,392.11

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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.