Home / 30,624.77-42,231.11-28,838.93

Finding the Fourth Proportional to 30,624.77, 42,231.11 and 28,838.93

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Solution

The fourth proportional to 30,624.77, 42,231.11 and 28,838.93 is: 39,768.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,624.77 : 42,231.11 = 28,838.93 : x
  2. Step 2: Convert to fraction form
    30,624.77/42,231.11 = 28,838.93/x
  3. Step 3: Cross multiply
    30,624.77x = 42,231.11 × 28,838.93
  4. Step 4: Simplify right side
    30,624.77x = 1,217,899,669.76
  5. Step 5: Solve for x
    x = 1,217,899,669.76/30,624.77
  6. Step 6: Final answer
    x = 39,768.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.