Home / 30,016.06-45,013.29-10,289.32

Finding the Fourth Proportional to 30,016.06, 45,013.29 and 10,289.32

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Solution

The fourth proportional to 30,016.06, 45,013.29 and 10,289.32 is: 15,430.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,016.06 : 45,013.29 = 10,289.32 : x
  2. Step 2: Convert to fraction form
    30,016.06/45,013.29 = 10,289.32/x
  3. Step 3: Cross multiply
    30,016.06x = 45,013.29 × 10,289.32
  4. Step 4: Simplify right side
    30,016.06x = 463,156,145.06
  5. Step 5: Solve for x
    x = 463,156,145.06/30,016.06
  6. Step 6: Final answer
    x = 15,430.28

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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.