Home / 23,145.47-34,718.40-5,615.45

Finding the Fourth Proportional to 23,145.47, 34,718.40 and 5,615.45

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Solution

The fourth proportional to 23,145.47, 34,718.40 and 5,615.45 is: 8,423.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,145.47 : 34,718.40 = 5,615.45 : x
  2. Step 2: Convert to fraction form
    23,145.47/34,718.40 = 5,615.45/x
  3. Step 3: Cross multiply
    23,145.47x = 34,718.40 × 5,615.45
  4. Step 4: Simplify right side
    23,145.47x = 194,959,265.69
  5. Step 5: Solve for x
    x = 194,959,265.69/23,145.47
  6. Step 6: Final answer
    x = 8,423.22

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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.