Home / 28,045.86-42,059.67-9,320.86

Finding the Fourth Proportional to 28,045.86, 42,059.67 and 9,320.86

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Solution

The fourth proportional to 28,045.86, 42,059.67 and 9,320.86 is: 13,978.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,045.86 : 42,059.67 = 9,320.86 : x
  2. Step 2: Convert to fraction form
    28,045.86/42,059.67 = 9,320.86/x
  3. Step 3: Cross multiply
    28,045.86x = 42,059.67 × 9,320.86
  4. Step 4: Simplify right side
    28,045.86x = 392,032,295.72
  5. Step 5: Solve for x
    x = 392,032,295.72/28,045.86
  6. Step 6: Final answer
    x = 13,978.26

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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.