Home / 32,979.08-45,509.52-18,639.20

Finding the Fourth Proportional to 32,979.08, 45,509.52 and 18,639.20

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Solution

The fourth proportional to 32,979.08, 45,509.52 and 18,639.20 is: 25,721.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,979.08 : 45,509.52 = 18,639.20 : x
  2. Step 2: Convert to fraction form
    32,979.08/45,509.52 = 18,639.20/x
  3. Step 3: Cross multiply
    32,979.08x = 45,509.52 × 18,639.20
  4. Step 4: Simplify right side
    32,979.08x = 848,261,045.18
  5. Step 5: Solve for x
    x = 848,261,045.18/32,979.08
  6. Step 6: Final answer
    x = 25,721.19

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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.