Home / 47,938.52-66,185.98-30,950.40

Finding the Fourth Proportional to 47,938.52, 66,185.98 and 30,950.40

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Solution

The fourth proportional to 47,938.52, 66,185.98 and 30,950.40 is: 42,731.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,938.52 : 66,185.98 = 30,950.40 : x
  2. Step 2: Convert to fraction form
    47,938.52/66,185.98 = 30,950.40/x
  3. Step 3: Cross multiply
    47,938.52x = 66,185.98 × 30,950.40
  4. Step 4: Simplify right side
    47,938.52x = 2,048,482,555.39
  5. Step 5: Solve for x
    x = 2,048,482,555.39/47,938.52
  6. Step 6: Final answer
    x = 42,731.45

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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.