Home / 28,088.71-42,137.39-10,559.77

Finding the Fourth Proportional to 28,088.71, 42,137.39 and 10,559.77

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Solution

The fourth proportional to 28,088.71, 42,137.39 and 10,559.77 is: 15,841.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,088.71 : 42,137.39 = 10,559.77 : x
  2. Step 2: Convert to fraction form
    28,088.71/42,137.39 = 10,559.77/x
  3. Step 3: Cross multiply
    28,088.71x = 42,137.39 × 10,559.77
  4. Step 4: Simplify right side
    28,088.71x = 444,961,146.80
  5. Step 5: Solve for x
    x = 444,961,146.80/28,088.71
  6. Step 6: Final answer
    x = 15,841.28

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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.