Home / 28,407.65-42,607.53-15,074.81

Finding the Fourth Proportional to 28,407.65, 42,607.53 and 15,074.81

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Solution

The fourth proportional to 28,407.65, 42,607.53 and 15,074.81 is: 22,610.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,407.65 : 42,607.53 = 15,074.81 : x
  2. Step 2: Convert to fraction form
    28,407.65/42,607.53 = 15,074.81/x
  3. Step 3: Cross multiply
    28,407.65x = 42,607.53 × 15,074.81
  4. Step 4: Simplify right side
    28,407.65x = 642,300,419.32
  5. Step 5: Solve for x
    x = 642,300,419.32/28,407.65
  6. Step 6: Final answer
    x = 22,610.12

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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.