Home / 14,332.88-21,495.48-3,945.20

Finding the Fourth Proportional to 14,332.88, 21,495.48 and 3,945.20

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Solution

The fourth proportional to 14,332.88, 21,495.48 and 3,945.20 is: 5,916.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,332.88 : 21,495.48 = 3,945.20 : x
  2. Step 2: Convert to fraction form
    14,332.88/21,495.48 = 3,945.20/x
  3. Step 3: Cross multiply
    14,332.88x = 21,495.48 × 3,945.20
  4. Step 4: Simplify right side
    14,332.88x = 84,803,967.70
  5. Step 5: Solve for x
    x = 84,803,967.70/14,332.88
  6. Step 6: Final answer
    x = 5,916.74

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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.