Home / 42,423.60-63,614.88-12,835.92

Finding the Fourth Proportional to 42,423.60, 63,614.88 and 12,835.92

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Solution

The fourth proportional to 42,423.60, 63,614.88 and 12,835.92 is: 19,247.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,423.60 : 63,614.88 = 12,835.92 : x
  2. Step 2: Convert to fraction form
    42,423.60/63,614.88 = 12,835.92/x
  3. Step 3: Cross multiply
    42,423.60x = 63,614.88 × 12,835.92
  4. Step 4: Simplify right side
    42,423.60x = 816,555,510.49
  5. Step 5: Solve for x
    x = 816,555,510.49/42,423.60
  6. Step 6: Final answer
    x = 19,247.67

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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.