Home / 28,585.78-42,904.82-14,555.50

Finding the Fourth Proportional to 28,585.78, 42,904.82 and 14,555.50

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Solution

The fourth proportional to 28,585.78, 42,904.82 and 14,555.50 is: 21,846.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,585.78 : 42,904.82 = 14,555.50 : x
  2. Step 2: Convert to fraction form
    28,585.78/42,904.82 = 14,555.50/x
  3. Step 3: Cross multiply
    28,585.78x = 42,904.82 × 14,555.50
  4. Step 4: Simplify right side
    28,585.78x = 624,501,036.64
  5. Step 5: Solve for x
    x = 624,501,036.64/28,585.78
  6. Step 6: Final answer
    x = 21,846.56

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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.