Home / 23,490.60-32,417.30-13,420.38

Finding the Fourth Proportional to 23,490.60, 32,417.30 and 13,420.38

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Solution

The fourth proportional to 23,490.60, 32,417.30 and 13,420.38 is: 18,520.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,490.60 : 32,417.30 = 13,420.38 : x
  2. Step 2: Convert to fraction form
    23,490.60/32,417.30 = 13,420.38/x
  3. Step 3: Cross multiply
    23,490.60x = 32,417.30 × 13,420.38
  4. Step 4: Simplify right side
    23,490.60x = 435,052,484.57
  5. Step 5: Solve for x
    x = 435,052,484.57/23,490.60
  6. Step 6: Final answer
    x = 18,520.28

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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.