Home / 28,555.08-42,848.01-13,558.74

Finding the Fourth Proportional to 28,555.08, 42,848.01 and 13,558.74

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Solution

The fourth proportional to 28,555.08, 42,848.01 and 13,558.74 is: 20,345.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,555.08 : 42,848.01 = 13,558.74 : x
  2. Step 2: Convert to fraction form
    28,555.08/42,848.01 = 13,558.74/x
  3. Step 3: Cross multiply
    28,555.08x = 42,848.01 × 13,558.74
  4. Step 4: Simplify right side
    28,555.08x = 580,965,027.11
  5. Step 5: Solve for x
    x = 580,965,027.11/28,555.08
  6. Step 6: Final answer
    x = 20,345.42

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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.