Home / 26,001.87-39,007.85-9,990.23

Finding the Fourth Proportional to 26,001.87, 39,007.85 and 9,990.23

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Solution

The fourth proportional to 26,001.87, 39,007.85 and 9,990.23 is: 14,987.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,001.87 : 39,007.85 = 9,990.23 : x
  2. Step 2: Convert to fraction form
    26,001.87/39,007.85 = 9,990.23/x
  3. Step 3: Cross multiply
    26,001.87x = 39,007.85 × 9,990.23
  4. Step 4: Simplify right side
    26,001.87x = 389,697,148.32
  5. Step 5: Solve for x
    x = 389,697,148.32/26,001.87
  6. Step 6: Final answer
    x = 14,987.28

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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.