Home / 28,588.78-42,909.32-14,558.50

Finding the Fourth Proportional to 28,588.78, 42,909.32 and 14,558.50

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Solution

The fourth proportional to 28,588.78, 42,909.32 and 14,558.50 is: 21,851.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,588.78 : 42,909.32 = 14,558.50 : x
  2. Step 2: Convert to fraction form
    28,588.78/42,909.32 = 14,558.50/x
  3. Step 3: Cross multiply
    28,588.78x = 42,909.32 × 14,558.50
  4. Step 4: Simplify right side
    28,588.78x = 624,695,335.22
  5. Step 5: Solve for x
    x = 624,695,335.22/28,588.78
  6. Step 6: Final answer
    x = 21,851.07

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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.