Home / 31,511.09-43,483.65-19,574.18

Finding the Fourth Proportional to 31,511.09, 43,483.65 and 19,574.18

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Solution

The fourth proportional to 31,511.09, 43,483.65 and 19,574.18 is: 27,011.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,511.09 : 43,483.65 = 19,574.18 : x
  2. Step 2: Convert to fraction form
    31,511.09/43,483.65 = 19,574.18/x
  3. Step 3: Cross multiply
    31,511.09x = 43,483.65 × 19,574.18
  4. Step 4: Simplify right side
    31,511.09x = 851,156,792.16
  5. Step 5: Solve for x
    x = 851,156,792.16/31,511.09
  6. Step 6: Final answer
    x = 27,011.35

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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.