Home / 39,000-53,829.60-22,242.72

Finding the Fourth Proportional to 39,000, 53,829.60 and 22,242.72

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Solution

The fourth proportional to 39,000, 53,829.60 and 22,242.72 is: 30,700.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,000 : 53,829.60 = 22,242.72 : x
  2. Step 2: Convert to fraction form
    39,000/53,829.60 = 22,242.72/x
  3. Step 3: Cross multiply
    39,000x = 53,829.60 × 22,242.72
  4. Step 4: Simplify right side
    39,000x = 1,197,316,720.51
  5. Step 5: Solve for x
    x = 1,197,316,720.51/39,000
  6. Step 6: Final answer
    x = 30,700.43

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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.