Home / 28,030.06-38,681.79-15,283.14

Finding the Fourth Proportional to 28,030.06, 38,681.79 and 15,283.14

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Solution

The fourth proportional to 28,030.06, 38,681.79 and 15,283.14 is: 21,090.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,030.06 : 38,681.79 = 15,283.14 : x
  2. Step 2: Convert to fraction form
    28,030.06/38,681.79 = 15,283.14/x
  3. Step 3: Cross multiply
    28,030.06x = 38,681.79 × 15,283.14
  4. Step 4: Simplify right side
    28,030.06x = 591,179,212.02
  5. Step 5: Solve for x
    x = 591,179,212.02/28,030.06
  6. Step 6: Final answer
    x = 21,090.90

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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.