Home / 20,332.10-30,495.01-5,542.21

Finding the Fourth Proportional to 20,332.10, 30,495.01 and 5,542.21

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Solution

The fourth proportional to 20,332.10, 30,495.01 and 5,542.21 is: 8,312.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,332.10 : 30,495.01 = 5,542.21 : x
  2. Step 2: Convert to fraction form
    20,332.10/30,495.01 = 5,542.21/x
  3. Step 3: Cross multiply
    20,332.10x = 30,495.01 × 5,542.21
  4. Step 4: Simplify right side
    20,332.10x = 169,009,569.19
  5. Step 5: Solve for x
    x = 169,009,569.19/20,332.10
  6. Step 6: Final answer
    x = 8,312.45

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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.