Home / 28,497.02-39,326.72-15,921.77

Finding the Fourth Proportional to 28,497.02, 39,326.72 and 15,921.77

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Solution

The fourth proportional to 28,497.02, 39,326.72 and 15,921.77 is: 21,972.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,497.02 : 39,326.72 = 15,921.77 : x
  2. Step 2: Convert to fraction form
    28,497.02/39,326.72 = 15,921.77/x
  3. Step 3: Cross multiply
    28,497.02x = 39,326.72 × 15,921.77
  4. Step 4: Simplify right side
    28,497.02x = 626,150,714.45
  5. Step 5: Solve for x
    x = 626,150,714.45/28,497.02
  6. Step 6: Final answer
    x = 21,972.50

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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.