Home / 30,275.31-45,424.50-13,631.51

Finding the Fourth Proportional to 30,275.31, 45,424.50 and 13,631.51

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Solution

The fourth proportional to 30,275.31, 45,424.50 and 13,631.51 is: 20,452.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,275.31 : 45,424.50 = 13,631.51 : x
  2. Step 2: Convert to fraction form
    30,275.31/45,424.50 = 13,631.51/x
  3. Step 3: Cross multiply
    30,275.31x = 45,424.50 × 13,631.51
  4. Step 4: Simplify right side
    30,275.31x = 619,204,457.84
  5. Step 5: Solve for x
    x = 619,204,457.84/30,275.31
  6. Step 6: Final answer
    x = 20,452.46

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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.