Home / 39,340.01-54,289.84-21,435.01

Finding the Fourth Proportional to 39,340.01, 54,289.84 and 21,435.01

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Solution

The fourth proportional to 39,340.01, 54,289.84 and 21,435.01 is: 29,580.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,340.01 : 54,289.84 = 21,435.01 : x
  2. Step 2: Convert to fraction form
    39,340.01/54,289.84 = 21,435.01/x
  3. Step 3: Cross multiply
    39,340.01x = 54,289.84 × 21,435.01
  4. Step 4: Simplify right side
    39,340.01x = 1,163,703,263.30
  5. Step 5: Solve for x
    x = 1,163,703,263.30/39,340.01
  6. Step 6: Final answer
    x = 29,580.65

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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.