Home / 28,210.60-38,926.98-15,634.60

Finding the Fourth Proportional to 28,210.60, 38,926.98 and 15,634.60

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Solution

The fourth proportional to 28,210.60, 38,926.98 and 15,634.60 is: 21,573.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,210.60 : 38,926.98 = 15,634.60 : x
  2. Step 2: Convert to fraction form
    28,210.60/38,926.98 = 15,634.60/x
  3. Step 3: Cross multiply
    28,210.60x = 38,926.98 × 15,634.60
  4. Step 4: Simplify right side
    28,210.60x = 608,607,761.51
  5. Step 5: Solve for x
    x = 608,607,761.51/28,210.60
  6. Step 6: Final answer
    x = 21,573.73

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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.