Home / 28,355.78-42,559.93-14,325.69

Finding the Fourth Proportional to 28,355.78, 42,559.93 and 14,325.69

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Solution

The fourth proportional to 28,355.78, 42,559.93 and 14,325.69 is: 21,501.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,355.78 : 42,559.93 = 14,325.69 : x
  2. Step 2: Convert to fraction form
    28,355.78/42,559.93 = 14,325.69/x
  3. Step 3: Cross multiply
    28,355.78x = 42,559.93 × 14,325.69
  4. Step 4: Simplify right side
    28,355.78x = 609,700,182.01
  5. Step 5: Solve for x
    x = 609,700,182.01/28,355.78
  6. Step 6: Final answer
    x = 21,501.79

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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.