Home / 21,430.01-32,146.50-6,636.98

Finding the Fourth Proportional to 21,430.01, 32,146.50 and 6,636.98

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Solution

The fourth proportional to 21,430.01, 32,146.50 and 6,636.98 is: 9,955.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,430.01 : 32,146.50 = 6,636.98 : x
  2. Step 2: Convert to fraction form
    21,430.01/32,146.50 = 6,636.98/x
  3. Step 3: Cross multiply
    21,430.01x = 32,146.50 × 6,636.98
  4. Step 4: Simplify right side
    21,430.01x = 213,355,782.82
  5. Step 5: Solve for x
    x = 213,355,782.82/21,430.01
  6. Step 6: Final answer
    x = 9,955.93

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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.