Home / 23,490.30-32,416.86-13,420.08

Finding the Fourth Proportional to 23,490.30, 32,416.86 and 13,420.08

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Solution

The fourth proportional to 23,490.30, 32,416.86 and 13,420.08 is: 18,519.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,490.30 : 32,416.86 = 13,420.08 : x
  2. Step 2: Convert to fraction form
    23,490.30/32,416.86 = 13,420.08/x
  3. Step 3: Cross multiply
    23,490.30x = 32,416.86 × 13,420.08
  4. Step 4: Simplify right side
    23,490.30x = 435,036,854.55
  5. Step 5: Solve for x
    x = 435,036,854.55/23,490.30
  6. Step 6: Final answer
    x = 18,519.85

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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.