Home / 28,047.50-42,038.96-11,389.26

Finding the Fourth Proportional to 28,047.50, 42,038.96 and 11,389.26

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Solution

The fourth proportional to 28,047.50, 42,038.96 and 11,389.26 is: 17,070.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,047.50 : 42,038.96 = 11,389.26 : x
  2. Step 2: Convert to fraction form
    28,047.50/42,038.96 = 11,389.26/x
  3. Step 3: Cross multiply
    28,047.50x = 42,038.96 × 11,389.26
  4. Step 4: Simplify right side
    28,047.50x = 478,792,645.57
  5. Step 5: Solve for x
    x = 478,792,645.57/28,047.50
  6. Step 6: Final answer
    x = 17,070.78

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.