Home / 15,325.72-23,008.02-13,031.80

Finding the Fourth Proportional to 15,325.72, 23,008.02 and 13,031.80

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Solution

The fourth proportional to 15,325.72, 23,008.02 and 13,031.80 is: 19,564.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,325.72 : 23,008.02 = 13,031.80 : x
  2. Step 2: Convert to fraction form
    15,325.72/23,008.02 = 13,031.80/x
  3. Step 3: Cross multiply
    15,325.72x = 23,008.02 × 13,031.80
  4. Step 4: Simplify right side
    15,325.72x = 299,835,915.04
  5. Step 5: Solve for x
    x = 299,835,915.04/15,325.72
  6. Step 6: Final answer
    x = 19,564.23

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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.