Home / 51,020.40-70,407.76-28,664.40

Finding the Fourth Proportional to 51,020.40, 70,407.76 and 28,664.40

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Solution

The fourth proportional to 51,020.40, 70,407.76 and 28,664.40 is: 39,556.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,020.40 : 70,407.76 = 28,664.40 : x
  2. Step 2: Convert to fraction form
    51,020.40/70,407.76 = 28,664.40/x
  3. Step 3: Cross multiply
    51,020.40x = 70,407.76 × 28,664.40
  4. Step 4: Simplify right side
    51,020.40x = 2,018,196,195.74
  5. Step 5: Solve for x
    x = 2,018,196,195.74/51,020.40
  6. Step 6: Final answer
    x = 39,556.65

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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.