Home / 16,128.48-24,079.80-15,139.68

Finding the Fourth Proportional to 16,128.48, 24,079.80 and 15,139.68

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Solution

The fourth proportional to 16,128.48, 24,079.80 and 15,139.68 is: 22,603.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,128.48 : 24,079.80 = 15,139.68 : x
  2. Step 2: Convert to fraction form
    16,128.48/24,079.80 = 15,139.68/x
  3. Step 3: Cross multiply
    16,128.48x = 24,079.80 × 15,139.68
  4. Step 4: Simplify right side
    16,128.48x = 364,560,466.46
  5. Step 5: Solve for x
    x = 364,560,466.46/16,128.48
  6. Step 6: Final answer
    x = 22,603.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.