Home / 28,029.50-38,681.01-15,282.58

Finding the Fourth Proportional to 28,029.50, 38,681.01 and 15,282.58

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Solution

The fourth proportional to 28,029.50, 38,681.01 and 15,282.58 is: 21,090.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,029.50 : 38,681.01 = 15,282.58 : x
  2. Step 2: Convert to fraction form
    28,029.50/38,681.01 = 15,282.58/x
  3. Step 3: Cross multiply
    28,029.50x = 38,681.01 × 15,282.58
  4. Step 4: Simplify right side
    28,029.50x = 591,145,668.01
  5. Step 5: Solve for x
    x = 591,145,668.01/28,029.50
  6. Step 6: Final answer
    x = 21,090.13

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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.