Home / 52,438.08-78,613.59-20,828.64

Finding the Fourth Proportional to 52,438.08, 78,613.59 and 20,828.64

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Solution

The fourth proportional to 52,438.08, 78,613.59 and 20,828.64 is: 31,225.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,438.08 : 78,613.59 = 20,828.64 : x
  2. Step 2: Convert to fraction form
    52,438.08/78,613.59 = 20,828.64/x
  3. Step 3: Cross multiply
    52,438.08x = 78,613.59 × 20,828.64
  4. Step 4: Simplify right side
    52,438.08x = 1,637,414,165.22
  5. Step 5: Solve for x
    x = 1,637,414,165.22/52,438.08
  6. Step 6: Final answer
    x = 31,225.67

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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.