Home / 21,210.42-31,793.76-9,526.98

Finding the Fourth Proportional to 21,210.42, 31,793.76 and 9,526.98

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Solution

The fourth proportional to 21,210.42, 31,793.76 and 9,526.98 is: 14,280.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,210.42 : 31,793.76 = 9,526.98 : x
  2. Step 2: Convert to fraction form
    21,210.42/31,793.76 = 9,526.98/x
  3. Step 3: Cross multiply
    21,210.42x = 31,793.76 × 9,526.98
  4. Step 4: Simplify right side
    21,210.42x = 302,898,515.64
  5. Step 5: Solve for x
    x = 302,898,515.64/21,210.42
  6. Step 6: Final answer
    x = 14,280.65

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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.