Home / 51,220.69-70,685.43-28,253.16

Finding the Fourth Proportional to 51,220.69, 70,685.43 and 28,253.16

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Solution

The fourth proportional to 51,220.69, 70,685.43 and 28,253.16 is: 38,989.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,220.69 : 70,685.43 = 28,253.16 : x
  2. Step 2: Convert to fraction form
    51,220.69/70,685.43 = 28,253.16/x
  3. Step 3: Cross multiply
    51,220.69x = 70,685.43 × 28,253.16
  4. Step 4: Simplify right side
    51,220.69x = 1,997,086,763.46
  5. Step 5: Solve for x
    x = 1,997,086,763.46/51,220.69
  6. Step 6: Final answer
    x = 38,989.84

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Double scale
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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.