Home / 51,407.76-70,942.29-28,746.80

Finding the Fourth Proportional to 51,407.76, 70,942.29 and 28,746.80

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Solution

The fourth proportional to 51,407.76, 70,942.29 and 28,746.80 is: 39,670.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,407.76 : 70,942.29 = 28,746.80 : x
  2. Step 2: Convert to fraction form
    51,407.76/70,942.29 = 28,746.80/x
  3. Step 3: Cross multiply
    51,407.76x = 70,942.29 × 28,746.80
  4. Step 4: Simplify right side
    51,407.76x = 2,039,363,467.46
  5. Step 5: Solve for x
    x = 2,039,363,467.46/51,407.76
  6. Step 6: Final answer
    x = 39,670.34

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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.