Home / 23,301.05-32,155.40-12,690.74

Finding the Fourth Proportional to 23,301.05, 32,155.40 and 12,690.74

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Solution

The fourth proportional to 23,301.05, 32,155.40 and 12,690.74 is: 17,513.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,301.05 : 32,155.40 = 12,690.74 : x
  2. Step 2: Convert to fraction form
    23,301.05/32,155.40 = 12,690.74/x
  3. Step 3: Cross multiply
    23,301.05x = 32,155.40 × 12,690.74
  4. Step 4: Simplify right side
    23,301.05x = 408,075,933.11
  5. Step 5: Solve for x
    x = 408,075,933.11/23,301.05
  6. Step 6: Final answer
    x = 17,513.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.