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Finding the Fourth Proportional to 35,683.85, 53,509.03 and 20,897.21

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Solution

The fourth proportional to 35,683.85, 53,509.03 and 20,897.21 is: 31,336.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,683.85 : 53,509.03 = 20,897.21 : x
  2. Step 2: Convert to fraction form
    35,683.85/53,509.03 = 20,897.21/x
  3. Step 3: Cross multiply
    35,683.85x = 53,509.03 × 20,897.21
  4. Step 4: Simplify right side
    35,683.85x = 1,118,189,117.02
  5. Step 5: Solve for x
    x = 1,118,189,117.02/35,683.85
  6. Step 6: Final answer
    x = 31,336.00

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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.