Home / 30,666.72-45,901.59-20,653.02

Finding the Fourth Proportional to 30,666.72, 45,901.59 and 20,653.02

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Solution

The fourth proportional to 30,666.72, 45,901.59 and 20,653.02 is: 30,913.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,666.72 : 45,901.59 = 20,653.02 : x
  2. Step 2: Convert to fraction form
    30,666.72/45,901.59 = 20,653.02/x
  3. Step 3: Cross multiply
    30,666.72x = 45,901.59 × 20,653.02
  4. Step 4: Simplify right side
    30,666.72x = 948,006,456.30
  5. Step 5: Solve for x
    x = 948,006,456.30/30,666.72
  6. Step 6: Final answer
    x = 30,913.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.