Home / 31,440.74-47,348.30-28,356.26

Finding the Fourth Proportional to 31,440.74, 47,348.30 and 28,356.26

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Solution

The fourth proportional to 31,440.74, 47,348.30 and 28,356.26 is: 42,703.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,440.74 : 47,348.30 = 28,356.26 : x
  2. Step 2: Convert to fraction form
    31,440.74/47,348.30 = 28,356.26/x
  3. Step 3: Cross multiply
    31,440.74x = 47,348.30 × 28,356.26
  4. Step 4: Simplify right side
    31,440.74x = 1,342,620,705.36
  5. Step 5: Solve for x
    x = 1,342,620,705.36/31,440.74
  6. Step 6: Final answer
    x = 42,703.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.