Home / 15,780.60-23,670.90-15,521.40

Finding the Fourth Proportional to 15,780.60, 23,670.90 and 15,521.40

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Solution

The fourth proportional to 15,780.60, 23,670.90 and 15,521.40 is: 23,282.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,780.60 : 23,670.90 = 15,521.40 : x
  2. Step 2: Convert to fraction form
    15,780.60/23,670.90 = 15,521.40/x
  3. Step 3: Cross multiply
    15,780.60x = 23,670.90 × 15,521.40
  4. Step 4: Simplify right side
    15,780.60x = 367,405,507.26
  5. Step 5: Solve for x
    x = 367,405,507.26/15,780.60
  6. Step 6: Final answer
    x = 23,282.10

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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.