Home / 30,432.04-45,614.56-19,897.72

Finding the Fourth Proportional to 30,432.04, 45,614.56 and 19,897.72

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Solution

The fourth proportional to 30,432.04, 45,614.56 and 19,897.72 is: 29,824.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,432.04 : 45,614.56 = 19,897.72 : x
  2. Step 2: Convert to fraction form
    30,432.04/45,614.56 = 19,897.72/x
  3. Step 3: Cross multiply
    30,432.04x = 45,614.56 × 19,897.72
  4. Step 4: Simplify right side
    30,432.04x = 907,625,742.80
  5. Step 5: Solve for x
    x = 907,625,742.80/30,432.04
  6. Step 6: Final answer
    x = 29,824.68

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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.