Home / 30,457.64-45,686.26-15,670.68

Finding the Fourth Proportional to 30,457.64, 45,686.26 and 15,670.68

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Solution

The fourth proportional to 30,457.64, 45,686.26 and 15,670.68 is: 23,505.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,457.64 : 45,686.26 = 15,670.68 : x
  2. Step 2: Convert to fraction form
    30,457.64/45,686.26 = 15,670.68/x
  3. Step 3: Cross multiply
    30,457.64x = 45,686.26 × 15,670.68
  4. Step 4: Simplify right side
    30,457.64x = 715,934,760.86
  5. Step 5: Solve for x
    x = 715,934,760.86/30,457.64
  6. Step 6: Final answer
    x = 23,505.92

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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.