Home / 15,420.08-23,139.35-14,165.29

Finding the Fourth Proportional to 15,420.08, 23,139.35 and 14,165.29

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Solution

The fourth proportional to 15,420.08, 23,139.35 and 14,165.29 is: 21,256.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,420.08 : 23,139.35 = 14,165.29 : x
  2. Step 2: Convert to fraction form
    15,420.08/23,139.35 = 14,165.29/x
  3. Step 3: Cross multiply
    15,420.08x = 23,139.35 × 14,165.29
  4. Step 4: Simplify right side
    15,420.08x = 327,775,710.89
  5. Step 5: Solve for x
    x = 327,775,710.89/15,420.08
  6. Step 6: Final answer
    x = 21,256.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.