Home / 30,475.86-45,718.11-9,417.62

Finding the Fourth Proportional to 30,475.86, 45,718.11 and 9,417.62

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Solution

The fourth proportional to 30,475.86, 45,718.11 and 9,417.62 is: 14,127.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,475.86 : 45,718.11 = 9,417.62 : x
  2. Step 2: Convert to fraction form
    30,475.86/45,718.11 = 9,417.62/x
  3. Step 3: Cross multiply
    30,475.86x = 45,718.11 × 9,417.62
  4. Step 4: Simplify right side
    30,475.86x = 430,555,558.51
  5. Step 5: Solve for x
    x = 430,555,558.51/30,475.86
  6. Step 6: Final answer
    x = 14,127.76

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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.