Home / 30,389.20-45,670.20-26,587.60

Finding the Fourth Proportional to 30,389.20, 45,670.20 and 26,587.60

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Solution

The fourth proportional to 30,389.20, 45,670.20 and 26,587.60 is: 39,956.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,389.20 : 45,670.20 = 26,587.60 : x
  2. Step 2: Convert to fraction form
    30,389.20/45,670.20 = 26,587.60/x
  3. Step 3: Cross multiply
    30,389.20x = 45,670.20 × 26,587.60
  4. Step 4: Simplify right side
    30,389.20x = 1,214,261,009.52
  5. Step 5: Solve for x
    x = 1,214,261,009.52/30,389.20
  6. Step 6: Final answer
    x = 39,956.99

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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.