Home / 32,678.28-45,085.75-18,528.39

Finding the Fourth Proportional to 32,678.28, 45,085.75 and 18,528.39

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Solution

The fourth proportional to 32,678.28, 45,085.75 and 18,528.39 is: 25,563.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,678.28 : 45,085.75 = 18,528.39 : x
  2. Step 2: Convert to fraction form
    32,678.28/45,085.75 = 18,528.39/x
  3. Step 3: Cross multiply
    32,678.28x = 45,085.75 × 18,528.39
  4. Step 4: Simplify right side
    32,678.28x = 835,366,313.12
  5. Step 5: Solve for x
    x = 835,366,313.12/32,678.28
  6. Step 6: Final answer
    x = 25,563.35

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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.