Home / 42,211.95-63,303.35-12,629.13

Finding the Fourth Proportional to 42,211.95, 63,303.35 and 12,629.13

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Solution

The fourth proportional to 42,211.95, 63,303.35 and 12,629.13 is: 18,939.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,211.95 : 63,303.35 = 12,629.13 : x
  2. Step 2: Convert to fraction form
    42,211.95/63,303.35 = 12,629.13/x
  3. Step 3: Cross multiply
    42,211.95x = 63,303.35 × 12,629.13
  4. Step 4: Simplify right side
    42,211.95x = 799,466,173.44
  5. Step 5: Solve for x
    x = 799,466,173.44/42,211.95
  6. Step 6: Final answer
    x = 18,939.33

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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.