Home / 21,439.81-32,159.44-9,590.46

Finding the Fourth Proportional to 21,439.81, 32,159.44 and 9,590.46

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Solution

The fourth proportional to 21,439.81, 32,159.44 and 9,590.46 is: 14,385.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,439.81 : 32,159.44 = 9,590.46 : x
  2. Step 2: Convert to fraction form
    21,439.81/32,159.44 = 9,590.46/x
  3. Step 3: Cross multiply
    21,439.81x = 32,159.44 × 9,590.46
  4. Step 4: Simplify right side
    21,439.81x = 308,423,822.94
  5. Step 5: Solve for x
    x = 308,423,822.94/21,439.81
  6. Step 6: Final answer
    x = 14,385.57

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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.