Home / 22,814.56-31,489.32-13,386.16

Finding the Fourth Proportional to 22,814.56, 31,489.32 and 13,386.16

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Solution

The fourth proportional to 22,814.56, 31,489.32 and 13,386.16 is: 18,475.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,814.56 : 31,489.32 = 13,386.16 : x
  2. Step 2: Convert to fraction form
    22,814.56/31,489.32 = 13,386.16/x
  3. Step 3: Cross multiply
    22,814.56x = 31,489.32 × 13,386.16
  4. Step 4: Simplify right side
    22,814.56x = 421,521,075.81
  5. Step 5: Solve for x
    x = 421,521,075.81/22,814.56
  6. Step 6: Final answer
    x = 18,475.97

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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.