Home / 32,728.79-45,164.01-18,389.19

Finding the Fourth Proportional to 32,728.79, 45,164.01 and 18,389.19

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Solution

The fourth proportional to 32,728.79, 45,164.01 and 18,389.19 is: 25,376.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,728.79 : 45,164.01 = 18,389.19 : x
  2. Step 2: Convert to fraction form
    32,728.79/45,164.01 = 18,389.19/x
  3. Step 3: Cross multiply
    32,728.79x = 45,164.01 × 18,389.19
  4. Step 4: Simplify right side
    32,728.79x = 830,529,243.29
  5. Step 5: Solve for x
    x = 830,529,243.29/32,728.79
  6. Step 6: Final answer
    x = 25,376.11

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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.