Home / 39,830.70-54,966.36-21,925.70

Finding the Fourth Proportional to 39,830.70, 54,966.36 and 21,925.70

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Solution

The fourth proportional to 39,830.70, 54,966.36 and 21,925.70 is: 30,257.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,830.70 : 54,966.36 = 21,925.70 : x
  2. Step 2: Convert to fraction form
    39,830.70/54,966.36 = 21,925.70/x
  3. Step 3: Cross multiply
    39,830.70x = 54,966.36 × 21,925.70
  4. Step 4: Simplify right side
    39,830.70x = 1,205,176,242.15
  5. Step 5: Solve for x
    x = 1,205,176,242.15/39,830.70
  6. Step 6: Final answer
    x = 30,257.47

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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.