Home / 42,479.44-63,715.07-12,897.54

Finding the Fourth Proportional to 42,479.44, 63,715.07 and 12,897.54

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Solution

The fourth proportional to 42,479.44, 63,715.07 and 12,897.54 is: 19,345.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,479.44 : 63,715.07 = 12,897.54 : x
  2. Step 2: Convert to fraction form
    42,479.44/63,715.07 = 12,897.54/x
  3. Step 3: Cross multiply
    42,479.44x = 63,715.07 × 12,897.54
  4. Step 4: Simplify right side
    42,479.44x = 821,767,696.17
  5. Step 5: Solve for x
    x = 821,767,696.17/42,479.44
  6. Step 6: Final answer
    x = 19,345.07

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1.5x scale

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.