Home / 22,631.40-31,139.52-18,583.32

Finding the Fourth Proportional to 22,631.40, 31,139.52 and 18,583.32

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Solution

The fourth proportional to 22,631.40, 31,139.52 and 18,583.32 is: 25,569.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,631.40 : 31,139.52 = 18,583.32 : x
  2. Step 2: Convert to fraction form
    22,631.40/31,139.52 = 18,583.32/x
  3. Step 3: Cross multiply
    22,631.40x = 31,139.52 × 18,583.32
  4. Step 4: Simplify right side
    22,631.40x = 578,675,664.81
  5. Step 5: Solve for x
    x = 578,675,664.81/22,631.40
  6. Step 6: Final answer
    x = 25,569.59

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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.