Home / 20,953.08-31,433.40-9,266.40

Finding the Fourth Proportional to 20,953.08, 31,433.40 and 9,266.40

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Solution

The fourth proportional to 20,953.08, 31,433.40 and 9,266.40 is: 13,901.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,953.08 : 31,433.40 = 9,266.40 : x
  2. Step 2: Convert to fraction form
    20,953.08/31,433.40 = 9,266.40/x
  3. Step 3: Cross multiply
    20,953.08x = 31,433.40 × 9,266.40
  4. Step 4: Simplify right side
    20,953.08x = 291,274,457.76
  5. Step 5: Solve for x
    x = 291,274,457.76/20,953.08
  6. Step 6: Final answer
    x = 13,901.27

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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.