Home / 28,116.14-38,798.83-15,538.46

Finding the Fourth Proportional to 28,116.14, 38,798.83 and 15,538.46

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Solution

The fourth proportional to 28,116.14, 38,798.83 and 15,538.46 is: 21,442.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,116.14 : 38,798.83 = 15,538.46 : x
  2. Step 2: Convert to fraction form
    28,116.14/38,798.83 = 15,538.46/x
  3. Step 3: Cross multiply
    28,116.14x = 38,798.83 × 15,538.46
  4. Step 4: Simplify right side
    28,116.14x = 602,874,068.00
  5. Step 5: Solve for x
    x = 602,874,068.00/28,116.14
  6. Step 6: Final answer
    x = 21,442.28

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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.