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Finding the Fourth Proportional to 34,487.68, 51,728.16 and 11,130.88

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Solution

The fourth proportional to 34,487.68, 51,728.16 and 11,130.88 is: 16,695.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,487.68 : 51,728.16 = 11,130.88 : x
  2. Step 2: Convert to fraction form
    34,487.68/51,728.16 = 11,130.88/x
  3. Step 3: Cross multiply
    34,487.68x = 51,728.16 × 11,130.88
  4. Step 4: Simplify right side
    34,487.68x = 575,779,941.58
  5. Step 5: Solve for x
    x = 575,779,941.58/34,487.68
  6. Step 6: Final answer
    x = 16,695.24

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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.