Home / 42,995.16-64,489.68-13,410.12

Finding the Fourth Proportional to 42,995.16, 64,489.68 and 13,410.12

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Solution

The fourth proportional to 42,995.16, 64,489.68 and 13,410.12 is: 20,114.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,995.16 : 64,489.68 = 13,410.12 : x
  2. Step 2: Convert to fraction form
    42,995.16/64,489.68 = 13,410.12/x
  3. Step 3: Cross multiply
    42,995.16x = 64,489.68 × 13,410.12
  4. Step 4: Simplify right side
    42,995.16x = 864,814,347.56
  5. Step 5: Solve for x
    x = 864,814,347.56/42,995.16
  6. Step 6: Final answer
    x = 20,114.23

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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.