Home / 28,140.96-42,186.60-10,623.09

Finding the Fourth Proportional to 28,140.96, 42,186.60 and 10,623.09

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Solution

The fourth proportional to 28,140.96, 42,186.60 and 10,623.09 is: 15,925.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,140.96 : 42,186.60 = 10,623.09 : x
  2. Step 2: Convert to fraction form
    28,140.96/42,186.60 = 10,623.09/x
  3. Step 3: Cross multiply
    28,140.96x = 42,186.60 × 10,623.09
  4. Step 4: Simplify right side
    28,140.96x = 448,152,048.59
  5. Step 5: Solve for x
    x = 448,152,048.59/28,140.96
  6. Step 6: Final answer
    x = 15,925.26

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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.