Home / 15,229.08-21,032.40-14,638.68

Finding the Fourth Proportional to 15,229.08, 21,032.40 and 14,638.68

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Solution

The fourth proportional to 15,229.08, 21,032.40 and 14,638.68 is: 20,217.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,229.08 : 21,032.40 = 14,638.68 : x
  2. Step 2: Convert to fraction form
    15,229.08/21,032.40 = 14,638.68/x
  3. Step 3: Cross multiply
    15,229.08x = 21,032.40 × 14,638.68
  4. Step 4: Simplify right side
    15,229.08x = 307,886,573.23
  5. Step 5: Solve for x
    x = 307,886,573.23/15,229.08
  6. Step 6: Final answer
    x = 20,217.02

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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.