Home / 30,088.08-45,134.76-7,901.40

Finding the Fourth Proportional to 30,088.08, 45,134.76 and 7,901.40

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Solution

The fourth proportional to 30,088.08, 45,134.76 and 7,901.40 is: 11,852.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,088.08 : 45,134.76 = 7,901.40 : x
  2. Step 2: Convert to fraction form
    30,088.08/45,134.76 = 7,901.40/x
  3. Step 3: Cross multiply
    30,088.08x = 45,134.76 × 7,901.40
  4. Step 4: Simplify right side
    30,088.08x = 356,627,792.66
  5. Step 5: Solve for x
    x = 356,627,792.66/30,088.08
  6. Step 6: Final answer
    x = 11,852.79

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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.