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Finding the Fourth Proportional to 21,897.60, 32,846.40 and 14,510.40

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Solution

The fourth proportional to 21,897.60, 32,846.40 and 14,510.40 is: 21,765.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,897.60 : 32,846.40 = 14,510.40 : x
  2. Step 2: Convert to fraction form
    21,897.60/32,846.40 = 14,510.40/x
  3. Step 3: Cross multiply
    21,897.60x = 32,846.40 × 14,510.40
  4. Step 4: Simplify right side
    21,897.60x = 476,614,402.56
  5. Step 5: Solve for x
    x = 476,614,402.56/21,897.60
  6. Step 6: Final answer
    x = 21,765.60

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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.