Home / 28,830.72-43,208.40-14,778.84

Finding the Fourth Proportional to 28,830.72, 43,208.40 and 14,778.84

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Solution

The fourth proportional to 28,830.72, 43,208.40 and 14,778.84 is: 22,148.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,830.72 : 43,208.40 = 14,778.84 : x
  2. Step 2: Convert to fraction form
    28,830.72/43,208.40 = 14,778.84/x
  3. Step 3: Cross multiply
    28,830.72x = 43,208.40 × 14,778.84
  4. Step 4: Simplify right side
    28,830.72x = 638,570,030.26
  5. Step 5: Solve for x
    x = 638,570,030.26/28,830.72
  6. Step 6: Final answer
    x = 22,148.94

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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.