Home / 42,540.05-63,807.74-12,955.41

Finding the Fourth Proportional to 42,540.05, 63,807.74 and 12,955.41

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Solution

The fourth proportional to 42,540.05, 63,807.74 and 12,955.41 is: 19,432.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,540.05 : 63,807.74 = 12,955.41 : x
  2. Step 2: Convert to fraction form
    42,540.05/63,807.74 = 12,955.41/x
  3. Step 3: Cross multiply
    42,540.05x = 63,807.74 × 12,955.41
  4. Step 4: Simplify right side
    42,540.05x = 826,655,146.22
  5. Step 5: Solve for x
    x = 826,655,146.22/42,540.05
  6. Step 6: Final answer
    x = 19,432.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.