Home / 18,424.08-25,402.50-15,586.56

Finding the Fourth Proportional to 18,424.08, 25,402.50 and 15,586.56

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Solution

The fourth proportional to 18,424.08, 25,402.50 and 15,586.56 is: 21,490.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,424.08 : 25,402.50 = 15,586.56 : x
  2. Step 2: Convert to fraction form
    18,424.08/25,402.50 = 15,586.56/x
  3. Step 3: Cross multiply
    18,424.08x = 25,402.50 × 15,586.56
  4. Step 4: Simplify right side
    18,424.08x = 395,937,590.40
  5. Step 5: Solve for x
    x = 395,937,590.40/18,424.08
  6. Step 6: Final answer
    x = 21,490.22

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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.