Home / 15,370.20-23,055.30-13,426.20

Finding the Fourth Proportional to 15,370.20, 23,055.30 and 13,426.20

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Solution

The fourth proportional to 15,370.20, 23,055.30 and 13,426.20 is: 20,139.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,370.20 : 23,055.30 = 13,426.20 : x
  2. Step 2: Convert to fraction form
    15,370.20/23,055.30 = 13,426.20/x
  3. Step 3: Cross multiply
    15,370.20x = 23,055.30 × 13,426.20
  4. Step 4: Simplify right side
    15,370.20x = 309,545,068.86
  5. Step 5: Solve for x
    x = 309,545,068.86/15,370.20
  6. Step 6: Final answer
    x = 20,139.30

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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.