Home / 22,866.56-31,555.80-13,440.56

Finding the Fourth Proportional to 22,866.56, 31,555.80 and 13,440.56

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Solution

The fourth proportional to 22,866.56, 31,555.80 and 13,440.56 is: 18,547.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,866.56 : 31,555.80 = 13,440.56 : x
  2. Step 2: Convert to fraction form
    22,866.56/31,555.80 = 13,440.56/x
  3. Step 3: Cross multiply
    22,866.56x = 31,555.80 × 13,440.56
  4. Step 4: Simplify right side
    22,866.56x = 424,127,623.25
  5. Step 5: Solve for x
    x = 424,127,623.25/22,866.56
  6. Step 6: Final answer
    x = 18,547.94

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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.