Home / 28,527.36-39,380.95-20,357.26

Finding the Fourth Proportional to 28,527.36, 39,380.95 and 20,357.26

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Solution

The fourth proportional to 28,527.36, 39,380.95 and 20,357.26 is: 28,102.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,527.36 : 39,380.95 = 20,357.26 : x
  2. Step 2: Convert to fraction form
    28,527.36/39,380.95 = 20,357.26/x
  3. Step 3: Cross multiply
    28,527.36x = 39,380.95 × 20,357.26
  4. Step 4: Simplify right side
    28,527.36x = 801,688,165.19
  5. Step 5: Solve for x
    x = 801,688,165.19/28,527.36
  6. Step 6: Final answer
    x = 28,102.43

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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.