Home / 28,328.42-39,096.28-17,721.47

Finding the Fourth Proportional to 28,328.42, 39,096.28 and 17,721.47

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Solution

The fourth proportional to 28,328.42, 39,096.28 and 17,721.47 is: 24,457.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,328.42 : 39,096.28 = 17,721.47 : x
  2. Step 2: Convert to fraction form
    28,328.42/39,096.28 = 17,721.47/x
  3. Step 3: Cross multiply
    28,328.42x = 39,096.28 × 17,721.47
  4. Step 4: Simplify right side
    28,328.42x = 692,843,553.13
  5. Step 5: Solve for x
    x = 692,843,553.13/28,328.42
  6. Step 6: Final answer
    x = 24,457.54

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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.