Home / 38,903.76-53,612.28-28,276.56

Finding the Fourth Proportional to 38,903.76, 53,612.28 and 28,276.56

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Solution

The fourth proportional to 38,903.76, 53,612.28 and 28,276.56 is: 38,967.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,903.76 : 53,612.28 = 28,276.56 : x
  2. Step 2: Convert to fraction form
    38,903.76/53,612.28 = 28,276.56/x
  3. Step 3: Cross multiply
    38,903.76x = 53,612.28 × 28,276.56
  4. Step 4: Simplify right side
    38,903.76x = 1,515,970,852.16
  5. Step 5: Solve for x
    x = 1,515,970,852.16/38,903.76
  6. Step 6: Final answer
    x = 38,967.21

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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.