Home / 31,938.07-47,907.10-14,412.91

Finding the Fourth Proportional to 31,938.07, 47,907.10 and 14,412.91

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Solution

The fourth proportional to 31,938.07, 47,907.10 and 14,412.91 is: 21,619.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,938.07 : 47,907.10 = 14,412.91 : x
  2. Step 2: Convert to fraction form
    31,938.07/47,907.10 = 14,412.91/x
  3. Step 3: Cross multiply
    31,938.07x = 47,907.10 × 14,412.91
  4. Step 4: Simplify right side
    31,938.07x = 690,480,618.91
  5. Step 5: Solve for x
    x = 690,480,618.91/31,938.07
  6. Step 6: Final answer
    x = 21,619.36

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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.