Home / 30,009.54-45,021.58-8,948.72

Finding the Fourth Proportional to 30,009.54, 45,021.58 and 8,948.72

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Solution

The fourth proportional to 30,009.54, 45,021.58 and 8,948.72 is: 13,425.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,009.54 : 45,021.58 = 8,948.72 : x
  2. Step 2: Convert to fraction form
    30,009.54/45,021.58 = 8,948.72/x
  3. Step 3: Cross multiply
    30,009.54x = 45,021.58 × 8,948.72
  4. Step 4: Simplify right side
    30,009.54x = 402,885,513.38
  5. Step 5: Solve for x
    x = 402,885,513.38/30,009.54
  6. Step 6: Final answer
    x = 13,425.25

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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.