Home / 35,813.34-53,720.01-12,439.80

Finding the Fourth Proportional to 35,813.34, 53,720.01 and 12,439.80

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Solution

The fourth proportional to 35,813.34, 53,720.01 and 12,439.80 is: 18,659.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,813.34 : 53,720.01 = 12,439.80 : x
  2. Step 2: Convert to fraction form
    35,813.34/53,720.01 = 12,439.80/x
  3. Step 3: Cross multiply
    35,813.34x = 53,720.01 × 12,439.80
  4. Step 4: Simplify right side
    35,813.34x = 668,266,180.40
  5. Step 5: Solve for x
    x = 668,266,180.40/35,813.34
  6. Step 6: Final answer
    x = 18,659.70

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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.