Home / 28,166.04-42,190.56-13,386.60

Finding the Fourth Proportional to 28,166.04, 42,190.56 and 13,386.60

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Solution

The fourth proportional to 28,166.04, 42,190.56 and 13,386.60 is: 20,052.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,166.04 : 42,190.56 = 13,386.60 : x
  2. Step 2: Convert to fraction form
    28,166.04/42,190.56 = 13,386.60/x
  3. Step 3: Cross multiply
    28,166.04x = 42,190.56 × 13,386.60
  4. Step 4: Simplify right side
    28,166.04x = 564,788,150.50
  5. Step 5: Solve for x
    x = 564,788,150.50/28,166.04
  6. Step 6: Final answer
    x = 20,052.10

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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.