Home / 30,374.01-45,539.15-18,663.03

Finding the Fourth Proportional to 30,374.01, 45,539.15 and 18,663.03

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Solution

The fourth proportional to 30,374.01, 45,539.15 and 18,663.03 is: 27,981.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,374.01 : 45,539.15 = 18,663.03 : x
  2. Step 2: Convert to fraction form
    30,374.01/45,539.15 = 18,663.03/x
  3. Step 3: Cross multiply
    30,374.01x = 45,539.15 × 18,663.03
  4. Step 4: Simplify right side
    30,374.01x = 849,898,429.31
  5. Step 5: Solve for x
    x = 849,898,429.31/30,374.01
  6. Step 6: Final answer
    x = 27,981.11

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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.