Home / 30,586.45-45,899.16-13,948.14

Finding the Fourth Proportional to 30,586.45, 45,899.16 and 13,948.14

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Solution

The fourth proportional to 30,586.45, 45,899.16 and 13,948.14 is: 20,931.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,586.45 : 45,899.16 = 13,948.14 : x
  2. Step 2: Convert to fraction form
    30,586.45/45,899.16 = 13,948.14/x
  3. Step 3: Cross multiply
    30,586.45x = 45,899.16 × 13,948.14
  4. Step 4: Simplify right side
    30,586.45x = 640,207,909.56
  5. Step 5: Solve for x
    x = 640,207,909.56/30,586.45
  6. Step 6: Final answer
    x = 20,931.10

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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.