Home / 15,330.66-23,041.86-12,715.38

Finding the Fourth Proportional to 15,330.66, 23,041.86 and 12,715.38

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Solution

The fourth proportional to 15,330.66, 23,041.86 and 12,715.38 is: 19,111.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,330.66 : 23,041.86 = 12,715.38 : x
  2. Step 2: Convert to fraction form
    15,330.66/23,041.86 = 12,715.38/x
  3. Step 3: Cross multiply
    15,330.66x = 23,041.86 × 12,715.38
  4. Step 4: Simplify right side
    15,330.66x = 292,986,005.81
  5. Step 5: Solve for x
    x = 292,986,005.81/15,330.66
  6. Step 6: Final answer
    x = 19,111.11

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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.