Home / 28,888.53-39,852.38-18,128.04

Finding the Fourth Proportional to 28,888.53, 39,852.38 and 18,128.04

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Solution

The fourth proportional to 28,888.53, 39,852.38 and 18,128.04 is: 25,008.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,888.53 : 39,852.38 = 18,128.04 : x
  2. Step 2: Convert to fraction form
    28,888.53/39,852.38 = 18,128.04/x
  3. Step 3: Cross multiply
    28,888.53x = 39,852.38 × 18,128.04
  4. Step 4: Simplify right side
    28,888.53x = 722,445,538.74
  5. Step 5: Solve for x
    x = 722,445,538.74/28,888.53
  6. Step 6: Final answer
    x = 25,008.04

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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.