Home / 20,962.48-28,929.96-11,532.76

Finding the Fourth Proportional to 20,962.48, 28,929.96 and 11,532.76

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Solution

The fourth proportional to 20,962.48, 28,929.96 and 11,532.76 is: 15,916.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,962.48 : 28,929.96 = 11,532.76 : x
  2. Step 2: Convert to fraction form
    20,962.48/28,929.96 = 11,532.76/x
  3. Step 3: Cross multiply
    20,962.48x = 28,929.96 × 11,532.76
  4. Step 4: Simplify right side
    20,962.48x = 333,642,285.49
  5. Step 5: Solve for x
    x = 333,642,285.49/20,962.48
  6. Step 6: Final answer
    x = 15,916.16

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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.