Home / 30,302.07-45,461.75-10,315.95

Finding the Fourth Proportional to 30,302.07, 45,461.75 and 10,315.95

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Solution

The fourth proportional to 30,302.07, 45,461.75 and 10,315.95 is: 15,476.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,302.07 : 45,461.75 = 10,315.95 : x
  2. Step 2: Convert to fraction form
    30,302.07/45,461.75 = 10,315.95/x
  3. Step 3: Cross multiply
    30,302.07x = 45,461.75 × 10,315.95
  4. Step 4: Simplify right side
    30,302.07x = 468,981,139.91
  5. Step 5: Solve for x
    x = 468,981,139.91/30,302.07
  6. Step 6: Final answer
    x = 15,476.87

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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.