Home / 28,051.56-38,709.63-15,475.50

Finding the Fourth Proportional to 28,051.56, 38,709.63 and 15,475.50

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Solution

The fourth proportional to 28,051.56, 38,709.63 and 15,475.50 is: 21,355.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,051.56 : 38,709.63 = 15,475.50 : x
  2. Step 2: Convert to fraction form
    28,051.56/38,709.63 = 15,475.50/x
  3. Step 3: Cross multiply
    28,051.56x = 38,709.63 × 15,475.50
  4. Step 4: Simplify right side
    28,051.56x = 599,050,879.07
  5. Step 5: Solve for x
    x = 599,050,879.07/28,051.56
  6. Step 6: Final answer
    x = 21,355.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.