Home / 23,420.05-32,329.28-15,876.72

Finding the Fourth Proportional to 23,420.05, 32,329.28 and 15,876.72

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Solution

The fourth proportional to 23,420.05, 32,329.28 and 15,876.72 is: 21,916.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,420.05 : 32,329.28 = 15,876.72 : x
  2. Step 2: Convert to fraction form
    23,420.05/32,329.28 = 15,876.72/x
  3. Step 3: Cross multiply
    23,420.05x = 32,329.28 × 15,876.72
  4. Step 4: Simplify right side
    23,420.05x = 513,282,966.05
  5. Step 5: Solve for x
    x = 513,282,966.05/23,420.05
  6. Step 6: Final answer
    x = 21,916.39

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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.