Home / 30,291.06-45,444.18-10,569.78

Finding the Fourth Proportional to 30,291.06, 45,444.18 and 10,569.78

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Solution

The fourth proportional to 30,291.06, 45,444.18 and 10,569.78 is: 15,857.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,291.06 : 45,444.18 = 10,569.78 : x
  2. Step 2: Convert to fraction form
    30,291.06/45,444.18 = 10,569.78/x
  3. Step 3: Cross multiply
    30,291.06x = 45,444.18 × 10,569.78
  4. Step 4: Simplify right side
    30,291.06x = 480,334,984.88
  5. Step 5: Solve for x
    x = 480,334,984.88/30,291.06
  6. Step 6: Final answer
    x = 15,857.32

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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.