Home / 31,931.28-47,898.72-9,748.08

Finding the Fourth Proportional to 31,931.28, 47,898.72 and 9,748.08

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Solution

The fourth proportional to 31,931.28, 47,898.72 and 9,748.08 is: 14,622.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,931.28 : 47,898.72 = 9,748.08 : x
  2. Step 2: Convert to fraction form
    31,931.28/47,898.72 = 9,748.08/x
  3. Step 3: Cross multiply
    31,931.28x = 47,898.72 × 9,748.08
  4. Step 4: Simplify right side
    31,931.28x = 466,920,554.46
  5. Step 5: Solve for x
    x = 466,920,554.46/31,931.28
  6. Step 6: Final answer
    x = 14,622.67

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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.