Home / 21,762.27-32,638.65-9,915.57

Finding the Fourth Proportional to 21,762.27, 32,638.65 and 9,915.57

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Solution

The fourth proportional to 21,762.27, 32,638.65 and 9,915.57 is: 14,871.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,762.27 : 32,638.65 = 9,915.57 : x
  2. Step 2: Convert to fraction form
    21,762.27/32,638.65 = 9,915.57/x
  3. Step 3: Cross multiply
    21,762.27x = 32,638.65 × 9,915.57
  4. Step 4: Simplify right side
    21,762.27x = 323,630,818.78
  5. Step 5: Solve for x
    x = 323,630,818.78/21,762.27
  6. Step 6: Final answer
    x = 14,871.19

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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.