Home / 28,611.18-39,483.02-15,864.39

Finding the Fourth Proportional to 28,611.18, 39,483.02 and 15,864.39

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Solution

The fourth proportional to 28,611.18, 39,483.02 and 15,864.39 is: 21,892.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,611.18 : 39,483.02 = 15,864.39 : x
  2. Step 2: Convert to fraction form
    28,611.18/39,483.02 = 15,864.39/x
  3. Step 3: Cross multiply
    28,611.18x = 39,483.02 × 15,864.39
  4. Step 4: Simplify right side
    28,611.18x = 626,374,027.66
  5. Step 5: Solve for x
    x = 626,374,027.66/28,611.18
  6. Step 6: Final answer
    x = 21,892.63

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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.