Home / 30,276.60-45,378.45-15,477.90

Finding the Fourth Proportional to 30,276.60, 45,378.45 and 15,477.90

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Solution

The fourth proportional to 30,276.60, 45,378.45 and 15,477.90 is: 23,198.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,276.60 : 45,378.45 = 15,477.90 : x
  2. Step 2: Convert to fraction form
    30,276.60/45,378.45 = 15,477.90/x
  3. Step 3: Cross multiply
    30,276.60x = 45,378.45 × 15,477.90
  4. Step 4: Simplify right side
    30,276.60x = 702,363,111.26
  5. Step 5: Solve for x
    x = 702,363,111.26/30,276.60
  6. Step 6: Final answer
    x = 23,198.22

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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.