Home / 51,013.09-70,392.71-28,348.42

Finding the Fourth Proportional to 51,013.09, 70,392.71 and 28,348.42

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Solution

The fourth proportional to 51,013.09, 70,392.71 and 28,348.42 is: 39,117.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,013.09 : 70,392.71 = 28,348.42 : x
  2. Step 2: Convert to fraction form
    51,013.09/70,392.71 = 28,348.42/x
  3. Step 3: Cross multiply
    51,013.09x = 70,392.71 × 28,348.42
  4. Step 4: Simplify right side
    51,013.09x = 1,995,522,541.16
  5. Step 5: Solve for x
    x = 1,995,522,541.16/51,013.09
  6. Step 6: Final answer
    x = 39,117.85

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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.