Home / 35,439.68-53,157.60-9,145.76

Finding the Fourth Proportional to 35,439.68, 53,157.60 and 9,145.76

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Solution

The fourth proportional to 35,439.68, 53,157.60 and 9,145.76 is: 13,718.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,439.68 : 53,157.60 = 9,145.76 : x
  2. Step 2: Convert to fraction form
    35,439.68/53,157.60 = 9,145.76/x
  3. Step 3: Cross multiply
    35,439.68x = 53,157.60 × 9,145.76
  4. Step 4: Simplify right side
    35,439.68x = 486,166,651.78
  5. Step 5: Solve for x
    x = 486,166,651.78/35,439.68
  6. Step 6: Final answer
    x = 13,718.14

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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.