Home / 21,368.69-32,054.40-8,221.06

Finding the Fourth Proportional to 21,368.69, 32,054.40 and 8,221.06

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Solution

The fourth proportional to 21,368.69, 32,054.40 and 8,221.06 is: 12,332.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,368.69 : 32,054.40 = 8,221.06 : x
  2. Step 2: Convert to fraction form
    21,368.69/32,054.40 = 8,221.06/x
  3. Step 3: Cross multiply
    21,368.69x = 32,054.40 × 8,221.06
  4. Step 4: Simplify right side
    21,368.69x = 263,521,024.42
  5. Step 5: Solve for x
    x = 263,521,024.42/21,368.69
  6. Step 6: Final answer
    x = 12,332.11

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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.