Home / 21,690.60-32,535.28-6,900.40

Finding the Fourth Proportional to 21,690.60, 32,535.28 and 6,900.40

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Solution

The fourth proportional to 21,690.60, 32,535.28 and 6,900.40 is: 10,350.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,690.60 : 32,535.28 = 6,900.40 : x
  2. Step 2: Convert to fraction form
    21,690.60/32,535.28 = 6,900.40/x
  3. Step 3: Cross multiply
    21,690.60x = 32,535.28 × 6,900.40
  4. Step 4: Simplify right side
    21,690.60x = 224,506,446.11
  5. Step 5: Solve for x
    x = 224,506,446.11/21,690.60
  6. Step 6: Final answer
    x = 10,350.40

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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.