Home / 25,379.03-35,026.32-15,312.90

Finding the Fourth Proportional to 25,379.03, 35,026.32 and 15,312.90

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Solution

The fourth proportional to 25,379.03, 35,026.32 and 15,312.90 is: 21,133.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,379.03 : 35,026.32 = 15,312.90 : x
  2. Step 2: Convert to fraction form
    25,379.03/35,026.32 = 15,312.90/x
  3. Step 3: Cross multiply
    25,379.03x = 35,026.32 × 15,312.90
  4. Step 4: Simplify right side
    25,379.03x = 536,354,535.53
  5. Step 5: Solve for x
    x = 536,354,535.53/25,379.03
  6. Step 6: Final answer
    x = 21,133.77

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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.