Home / 32,381.55-44,664.75-20,434.86

Finding the Fourth Proportional to 32,381.55, 44,664.75 and 20,434.86

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Solution

The fourth proportional to 32,381.55, 44,664.75 and 20,434.86 is: 28,186.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,381.55 : 44,664.75 = 20,434.86 : x
  2. Step 2: Convert to fraction form
    32,381.55/44,664.75 = 20,434.86/x
  3. Step 3: Cross multiply
    32,381.55x = 44,664.75 × 20,434.86
  4. Step 4: Simplify right side
    32,381.55x = 912,717,913.19
  5. Step 5: Solve for x
    x = 912,717,913.19/32,381.55
  6. Step 6: Final answer
    x = 28,186.36

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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.