Home / 28,207.58-38,926.13-15,461.46

Finding the Fourth Proportional to 28,207.58, 38,926.13 and 15,461.46

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Solution

The fourth proportional to 28,207.58, 38,926.13 and 15,461.46 is: 21,336.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,207.58 : 38,926.13 = 15,461.46 : x
  2. Step 2: Convert to fraction form
    28,207.58/38,926.13 = 15,461.46/x
  3. Step 3: Cross multiply
    28,207.58x = 38,926.13 × 15,461.46
  4. Step 4: Simplify right side
    28,207.58x = 601,854,724.64
  5. Step 5: Solve for x
    x = 601,854,724.64/28,207.58
  6. Step 6: Final answer
    x = 21,336.63

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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.