Home / 30,635.08-45,931.92-10,639.42

Finding the Fourth Proportional to 30,635.08, 45,931.92 and 10,639.42

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Solution

The fourth proportional to 30,635.08, 45,931.92 and 10,639.42 is: 15,951.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,635.08 : 45,931.92 = 10,639.42 : x
  2. Step 2: Convert to fraction form
    30,635.08/45,931.92 = 10,639.42/x
  3. Step 3: Cross multiply
    30,635.08x = 45,931.92 × 10,639.42
  4. Step 4: Simplify right side
    30,635.08x = 488,688,988.29
  5. Step 5: Solve for x
    x = 488,688,988.29/30,635.08
  6. Step 6: Final answer
    x = 15,951.94

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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.