Home / 24,128.16-33,339.20-20,916.80

Finding the Fourth Proportional to 24,128.16, 33,339.20 and 20,916.80

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Solution

The fourth proportional to 24,128.16, 33,339.20 and 20,916.80 is: 28,901.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    24,128.16 : 33,339.20 = 20,916.80 : x
  2. Step 2: Convert to fraction form
    24,128.16/33,339.20 = 20,916.80/x
  3. Step 3: Cross multiply
    24,128.16x = 33,339.20 × 20,916.80
  4. Step 4: Simplify right side
    24,128.16x = 697,349,378.56
  5. Step 5: Solve for x
    x = 697,349,378.56/24,128.16
  6. Step 6: Final answer
    x = 28,901.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.