Home / 28,557.12-42,838.50-9,834.68

Finding the Fourth Proportional to 28,557.12, 42,838.50 and 9,834.68

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Solution

The fourth proportional to 28,557.12, 42,838.50 and 9,834.68 is: 14,752.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,557.12 : 42,838.50 = 9,834.68 : x
  2. Step 2: Convert to fraction form
    28,557.12/42,838.50 = 9,834.68/x
  3. Step 3: Cross multiply
    28,557.12x = 42,838.50 × 9,834.68
  4. Step 4: Simplify right side
    28,557.12x = 421,303,083.16
  5. Step 5: Solve for x
    x = 421,303,083.16/28,557.12
  6. Step 6: Final answer
    x = 14,752.99

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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.