Home / 28,133.10-42,205.59-10,603.08

Finding the Fourth Proportional to 28,133.10, 42,205.59 and 10,603.08

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Solution

The fourth proportional to 28,133.10, 42,205.59 and 10,603.08 is: 15,906.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,133.10 : 42,205.59 = 10,603.08 : x
  2. Step 2: Convert to fraction form
    28,133.10/42,205.59 = 10,603.08/x
  3. Step 3: Cross multiply
    28,133.10x = 42,205.59 × 10,603.08
  4. Step 4: Simplify right side
    28,133.10x = 447,509,247.22
  5. Step 5: Solve for x
    x = 447,509,247.22/28,133.10
  6. Step 6: Final answer
    x = 15,906.86

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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.