Home / 28,222.19-38,948.36-15,646.94

Finding the Fourth Proportional to 28,222.19, 38,948.36 and 15,646.94

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Solution

The fourth proportional to 28,222.19, 38,948.36 and 15,646.94 is: 21,593.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,222.19 : 38,948.36 = 15,646.94 : x
  2. Step 2: Convert to fraction form
    28,222.19/38,948.36 = 15,646.94/x
  3. Step 3: Cross multiply
    28,222.19x = 38,948.36 × 15,646.94
  4. Step 4: Simplify right side
    28,222.19x = 609,422,652.02
  5. Step 5: Solve for x
    x = 609,422,652.02/28,222.19
  6. Step 6: Final answer
    x = 21,593.74

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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.