Home / 28,563.66-39,411.34-18,360.02

Finding the Fourth Proportional to 28,563.66, 39,411.34 and 18,360.02

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Solution

The fourth proportional to 28,563.66, 39,411.34 and 18,360.02 is: 25,332.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,563.66 : 39,411.34 = 18,360.02 : x
  2. Step 2: Convert to fraction form
    28,563.66/39,411.34 = 18,360.02/x
  3. Step 3: Cross multiply
    28,563.66x = 39,411.34 × 18,360.02
  4. Step 4: Simplify right side
    28,563.66x = 723,593,043.26
  5. Step 5: Solve for x
    x = 723,593,043.26/28,563.66
  6. Step 6: Final answer
    x = 25,332.64

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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.