Home / 20,088.84-30,130.95-5,298.93

Finding the Fourth Proportional to 20,088.84, 30,130.95 and 5,298.93

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Solution

The fourth proportional to 20,088.84, 30,130.95 and 5,298.93 is: 7,947.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,088.84 : 30,130.95 = 5,298.93 : x
  2. Step 2: Convert to fraction form
    20,088.84/30,130.95 = 5,298.93/x
  3. Step 3: Cross multiply
    20,088.84x = 30,130.95 × 5,298.93
  4. Step 4: Simplify right side
    20,088.84x = 159,661,794.88
  5. Step 5: Solve for x
    x = 159,661,794.88/20,088.84
  6. Step 6: Final answer
    x = 7,947.79

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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.