Home / 25,330.60-37,931.10-20,103.40

Finding the Fourth Proportional to 25,330.60, 37,931.10 and 20,103.40

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Solution

The fourth proportional to 25,330.60, 37,931.10 and 20,103.40 is: 30,103.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,330.60 : 37,931.10 = 20,103.40 : x
  2. Step 2: Convert to fraction form
    25,330.60/37,931.10 = 20,103.40/x
  3. Step 3: Cross multiply
    25,330.60x = 37,931.10 × 20,103.40
  4. Step 4: Simplify right side
    25,330.60x = 762,544,075.74
  5. Step 5: Solve for x
    x = 762,544,075.74/25,330.60
  6. Step 6: Final answer
    x = 30,103.67

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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.