Home / 30,340.20-45,501.36-10,615.08

Finding the Fourth Proportional to 30,340.20, 45,501.36 and 10,615.08

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Solution

The fourth proportional to 30,340.20, 45,501.36 and 10,615.08 is: 15,919.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,340.20 : 45,501.36 = 10,615.08 : x
  2. Step 2: Convert to fraction form
    30,340.20/45,501.36 = 10,615.08/x
  3. Step 3: Cross multiply
    30,340.20x = 45,501.36 × 10,615.08
  4. Step 4: Simplify right side
    30,340.20x = 483,000,576.51
  5. Step 5: Solve for x
    x = 483,000,576.51/30,340.20
  6. Step 6: Final answer
    x = 15,919.49

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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.