Home / 30,008.31-45,001.67-10,281.57

Finding the Fourth Proportional to 30,008.31, 45,001.67 and 10,281.57

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Solution

The fourth proportional to 30,008.31, 45,001.67 and 10,281.57 is: 15,418.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,008.31 : 45,001.67 = 10,281.57 : x
  2. Step 2: Convert to fraction form
    30,008.31/45,001.67 = 10,281.57/x
  3. Step 3: Cross multiply
    30,008.31x = 45,001.67 × 10,281.57
  4. Step 4: Simplify right side
    30,008.31x = 462,687,768.81
  5. Step 5: Solve for x
    x = 462,687,768.81/30,008.31
  6. Step 6: Final answer
    x = 15,418.65

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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.