Home / 28,052.60-38,684.94-21,762.68

Finding the Fourth Proportional to 28,052.60, 38,684.94 and 21,762.68

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Solution

The fourth proportional to 28,052.60, 38,684.94 and 21,762.68 is: 30,011.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,052.60 : 38,684.94 = 21,762.68 : x
  2. Step 2: Convert to fraction form
    28,052.60/38,684.94 = 21,762.68/x
  3. Step 3: Cross multiply
    28,052.60x = 38,684.94 × 21,762.68
  4. Step 4: Simplify right side
    28,052.60x = 841,887,970.04
  5. Step 5: Solve for x
    x = 841,887,970.04/28,052.60
  6. Step 6: Final answer
    x = 30,011.05

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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.