Home / 30,407.40-45,610.56-25,421.04

Finding the Fourth Proportional to 30,407.40, 45,610.56 and 25,421.04

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Solution

The fourth proportional to 30,407.40, 45,610.56 and 25,421.04 is: 38,131.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,407.40 : 45,610.56 = 25,421.04 : x
  2. Step 2: Convert to fraction form
    30,407.40/45,610.56 = 25,421.04/x
  3. Step 3: Cross multiply
    30,407.40x = 45,610.56 × 25,421.04
  4. Step 4: Simplify right side
    30,407.40x = 1,159,467,870.18
  5. Step 5: Solve for x
    x = 1,159,467,870.18/30,407.40
  6. Step 6: Final answer
    x = 38,131.11

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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.