Home / 15,430.20-23,145.30-15,284.40

Finding the Fourth Proportional to 15,430.20, 23,145.30 and 15,284.40

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Solution

The fourth proportional to 15,430.20, 23,145.30 and 15,284.40 is: 22,926.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,430.20 : 23,145.30 = 15,284.40 : x
  2. Step 2: Convert to fraction form
    15,430.20/23,145.30 = 15,284.40/x
  3. Step 3: Cross multiply
    15,430.20x = 23,145.30 × 15,284.40
  4. Step 4: Simplify right side
    15,430.20x = 353,762,023.32
  5. Step 5: Solve for x
    x = 353,762,023.32/15,430.20
  6. Step 6: Final answer
    x = 22,926.60

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Double scale
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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.