Home / 39,156.42-54,038.52-22,160.70

Finding the Fourth Proportional to 39,156.42, 54,038.52 and 22,160.70

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Solution

The fourth proportional to 39,156.42, 54,038.52 and 22,160.70 is: 30,583.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,156.42 : 54,038.52 = 22,160.70 : x
  2. Step 2: Convert to fraction form
    39,156.42/54,038.52 = 22,160.70/x
  3. Step 3: Cross multiply
    39,156.42x = 54,038.52 × 22,160.70
  4. Step 4: Simplify right side
    39,156.42x = 1,197,531,430.16
  5. Step 5: Solve for x
    x = 1,197,531,430.16/39,156.42
  6. Step 6: Final answer
    x = 30,583.27

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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.