Home / 42,559.77-63,840.45-12,975.72

Finding the Fourth Proportional to 42,559.77, 63,840.45 and 12,975.72

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Solution

The fourth proportional to 42,559.77, 63,840.45 and 12,975.72 is: 19,463.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,559.77 : 63,840.45 = 12,975.72 : x
  2. Step 2: Convert to fraction form
    42,559.77/63,840.45 = 12,975.72/x
  3. Step 3: Cross multiply
    42,559.77x = 63,840.45 × 12,975.72
  4. Step 4: Simplify right side
    42,559.77x = 828,375,803.87
  5. Step 5: Solve for x
    x = 828,375,803.87/42,559.77
  6. Step 6: Final answer
    x = 19,463.82

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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.