Home / 51,528.21-71,113.23-28,866.75

Finding the Fourth Proportional to 51,528.21, 71,113.23 and 28,866.75

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Solution

The fourth proportional to 51,528.21, 71,113.23 and 28,866.75 is: 39,838.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,528.21 : 71,113.23 = 28,866.75 : x
  2. Step 2: Convert to fraction form
    51,528.21/71,113.23 = 28,866.75/x
  3. Step 3: Cross multiply
    51,528.21x = 71,113.23 × 28,866.75
  4. Step 4: Simplify right side
    51,528.21x = 2,052,807,832.10
  5. Step 5: Solve for x
    x = 2,052,807,832.10/51,528.21
  6. Step 6: Final answer
    x = 39,838.52

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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.