Home / 28,035.09-42,051.72-11,390.20

Finding the Fourth Proportional to 28,035.09, 42,051.72 and 11,390.20

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Solution

The fourth proportional to 28,035.09, 42,051.72 and 11,390.20 is: 17,084.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,035.09 : 42,051.72 = 11,390.20 : x
  2. Step 2: Convert to fraction form
    28,035.09/42,051.72 = 11,390.20/x
  3. Step 3: Cross multiply
    28,035.09x = 42,051.72 × 11,390.20
  4. Step 4: Simplify right side
    28,035.09x = 478,977,501.14
  5. Step 5: Solve for x
    x = 478,977,501.14/28,035.09
  6. Step 6: Final answer
    x = 17,084.93

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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.