Home / 30,680.24-45,998.40-13,140.52

Finding the Fourth Proportional to 30,680.24, 45,998.40 and 13,140.52

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Solution

The fourth proportional to 30,680.24, 45,998.40 and 13,140.52 is: 19,701.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,680.24 : 45,998.40 = 13,140.52 : x
  2. Step 2: Convert to fraction form
    30,680.24/45,998.40 = 13,140.52/x
  3. Step 3: Cross multiply
    30,680.24x = 45,998.40 × 13,140.52
  4. Step 4: Simplify right side
    30,680.24x = 604,442,895.17
  5. Step 5: Solve for x
    x = 604,442,895.17/30,680.24
  6. Step 6: Final answer
    x = 19,701.37

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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.