Home / 32,720.79-45,155.82-18,383.16

Finding the Fourth Proportional to 32,720.79, 45,155.82 and 18,383.16

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Solution

The fourth proportional to 32,720.79, 45,155.82 and 18,383.16 is: 25,369.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,720.79 : 45,155.82 = 18,383.16 : x
  2. Step 2: Convert to fraction form
    32,720.79/45,155.82 = 18,383.16/x
  3. Step 3: Cross multiply
    32,720.79x = 45,155.82 × 18,383.16
  4. Step 4: Simplify right side
    32,720.79x = 830,106,663.99
  5. Step 5: Solve for x
    x = 830,106,663.99/32,720.79
  6. Step 6: Final answer
    x = 25,369.40

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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.