Home / 21,434.86-32,161.51-11,572.18

Finding the Fourth Proportional to 21,434.86, 32,161.51 and 11,572.18

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Solution

The fourth proportional to 21,434.86, 32,161.51 and 11,572.18 is: 17,363.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,434.86 : 32,161.51 = 11,572.18 : x
  2. Step 2: Convert to fraction form
    21,434.86/32,161.51 = 11,572.18/x
  3. Step 3: Cross multiply
    21,434.86x = 32,161.51 × 11,572.18
  4. Step 4: Simplify right side
    21,434.86x = 372,178,782.79
  5. Step 5: Solve for x
    x = 372,178,782.79/21,434.86
  6. Step 6: Final answer
    x = 17,363.25

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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.