Home / 30,543.12-45,823.32-9,768.24

Finding the Fourth Proportional to 30,543.12, 45,823.32 and 9,768.24

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Solution

The fourth proportional to 30,543.12, 45,823.32 and 9,768.24 is: 14,655.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,543.12 : 45,823.32 = 9,768.24 : x
  2. Step 2: Convert to fraction form
    30,543.12/45,823.32 = 9,768.24/x
  3. Step 3: Cross multiply
    30,543.12x = 45,823.32 × 9,768.24
  4. Step 4: Simplify right side
    30,543.12x = 447,613,187.36
  5. Step 5: Solve for x
    x = 447,613,187.36/30,543.12
  6. Step 6: Final answer
    x = 14,655.12

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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.