Home / 28,089.47-42,140.48-10,559.45

Finding the Fourth Proportional to 28,089.47, 42,140.48 and 10,559.45

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Solution

The fourth proportional to 28,089.47, 42,140.48 and 10,559.45 is: 15,841.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,089.47 : 42,140.48 = 10,559.45 : x
  2. Step 2: Convert to fraction form
    28,089.47/42,140.48 = 10,559.45/x
  3. Step 3: Cross multiply
    28,089.47x = 42,140.48 × 10,559.45
  4. Step 4: Simplify right side
    28,089.47x = 444,980,028.04
  5. Step 5: Solve for x
    x = 444,980,028.04/28,089.47
  6. Step 6: Final answer
    x = 15,841.53

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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.