Home / 42,627.15-63,940.74-18,929.13

Finding the Fourth Proportional to 42,627.15, 63,940.74 and 18,929.13

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Solution

The fourth proportional to 42,627.15, 63,940.74 and 18,929.13 is: 28,393.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,627.15 : 63,940.74 = 18,929.13 : x
  2. Step 2: Convert to fraction form
    42,627.15/63,940.74 = 18,929.13/x
  3. Step 3: Cross multiply
    42,627.15x = 63,940.74 × 18,929.13
  4. Step 4: Simplify right side
    42,627.15x = 1,210,342,579.76
  5. Step 5: Solve for x
    x = 1,210,342,579.76/42,627.15
  6. Step 6: Final answer
    x = 28,393.70

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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.