Home / 30,170.16-45,258.48-12,641.76

Finding the Fourth Proportional to 30,170.16, 45,258.48 and 12,641.76

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Solution

The fourth proportional to 30,170.16, 45,258.48 and 12,641.76 is: 18,964.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,170.16 : 45,258.48 = 12,641.76 : x
  2. Step 2: Convert to fraction form
    30,170.16/45,258.48 = 12,641.76/x
  3. Step 3: Cross multiply
    30,170.16x = 45,258.48 × 12,641.76
  4. Step 4: Simplify right side
    30,170.16x = 572,146,842.12
  5. Step 5: Solve for x
    x = 572,146,842.12/30,170.16
  6. Step 6: Final answer
    x = 18,964.00

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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.