Home / 32,730-45,165.78-19,968.45

Finding the Fourth Proportional to 32,730, 45,165.78 and 19,968.45

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Solution

The fourth proportional to 32,730, 45,165.78 and 19,968.45 is: 27,555.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,730 : 45,165.78 = 19,968.45 : x
  2. Step 2: Convert to fraction form
    32,730/45,165.78 = 19,968.45/x
  3. Step 3: Cross multiply
    32,730x = 45,165.78 × 19,968.45
  4. Step 4: Simplify right side
    32,730x = 901,890,619.64
  5. Step 5: Solve for x
    x = 901,890,619.64/32,730
  6. Step 6: Final answer
    x = 27,555.47

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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.