Home / 21,495.28-32,068.37-20,332.72

Finding the Fourth Proportional to 21,495.28, 32,068.37 and 20,332.72

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Solution

The fourth proportional to 21,495.28, 32,068.37 and 20,332.72 is: 30,333.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,495.28 : 32,068.37 = 20,332.72 : x
  2. Step 2: Convert to fraction form
    21,495.28/32,068.37 = 20,332.72/x
  3. Step 3: Cross multiply
    21,495.28x = 32,068.37 × 20,332.72
  4. Step 4: Simplify right side
    21,495.28x = 652,037,188.07
  5. Step 5: Solve for x
    x = 652,037,188.07/21,495.28
  6. Step 6: Final answer
    x = 30,333.97

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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.