Home / 31,437.09-47,126.32-21,581.01

Finding the Fourth Proportional to 31,437.09, 47,126.32 and 21,581.01

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Solution

The fourth proportional to 31,437.09, 47,126.32 and 21,581.01 is: 32,351.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,437.09 : 47,126.32 = 21,581.01 : x
  2. Step 2: Convert to fraction form
    31,437.09/47,126.32 = 21,581.01/x
  3. Step 3: Cross multiply
    31,437.09x = 47,126.32 × 21,581.01
  4. Step 4: Simplify right side
    31,437.09x = 1,017,033,583.18
  5. Step 5: Solve for x
    x = 1,017,033,583.18/31,437.09
  6. Step 6: Final answer
    x = 32,351.39

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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.