Home / 30,499.19-45,751.79-10,510.28

Finding the Fourth Proportional to 30,499.19, 45,751.79 and 10,510.28

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Solution

The fourth proportional to 30,499.19, 45,751.79 and 10,510.28 is: 15,766.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,499.19 : 45,751.79 = 10,510.28 : x
  2. Step 2: Convert to fraction form
    30,499.19/45,751.79 = 10,510.28/x
  3. Step 3: Cross multiply
    30,499.19x = 45,751.79 × 10,510.28
  4. Step 4: Simplify right side
    30,499.19x = 480,864,123.40
  5. Step 5: Solve for x
    x = 480,864,123.40/30,499.19
  6. Step 6: Final answer
    x = 15,766.46

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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.