Home / 42,432.21-63,651.60-12,852.45

Finding the Fourth Proportional to 42,432.21, 63,651.60 and 12,852.45

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Solution

The fourth proportional to 42,432.21, 63,651.60 and 12,852.45 is: 19,279.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,432.21 : 63,651.60 = 12,852.45 : x
  2. Step 2: Convert to fraction form
    42,432.21/63,651.60 = 12,852.45/x
  3. Step 3: Cross multiply
    42,432.21x = 63,651.60 × 12,852.45
  4. Step 4: Simplify right side
    42,432.21x = 818,079,006.42
  5. Step 5: Solve for x
    x = 818,079,006.42/42,432.21
  6. Step 6: Final answer
    x = 19,279.67

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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.