Home / 39,657.76-54,727.80-21,752.84

Finding the Fourth Proportional to 39,657.76, 54,727.80 and 21,752.84

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Solution

The fourth proportional to 39,657.76, 54,727.80 and 21,752.84 is: 30,018.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,657.76 : 54,727.80 = 21,752.84 : x
  2. Step 2: Convert to fraction form
    39,657.76/54,727.80 = 21,752.84/x
  3. Step 3: Cross multiply
    39,657.76x = 54,727.80 × 21,752.84
  4. Step 4: Simplify right side
    39,657.76x = 1,190,484,946.71
  5. Step 5: Solve for x
    x = 1,190,484,946.71/39,657.76
  6. Step 6: Final answer
    x = 30,018.97

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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.