Home / 28,276.02-39,021.48-15,701.58

Finding the Fourth Proportional to 28,276.02, 39,021.48 and 15,701.58

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Solution

The fourth proportional to 28,276.02, 39,021.48 and 15,701.58 is: 21,668.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,276.02 : 39,021.48 = 15,701.58 : x
  2. Step 2: Convert to fraction form
    28,276.02/39,021.48 = 15,701.58/x
  3. Step 3: Cross multiply
    28,276.02x = 39,021.48 × 15,701.58
  4. Step 4: Simplify right side
    28,276.02x = 612,698,889.94
  5. Step 5: Solve for x
    x = 612,698,889.94/28,276.02
  6. Step 6: Final answer
    x = 21,668.50

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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.