Home / 30,123.00-45,153.16-10,117.65

Finding the Fourth Proportional to 30,123.00, 45,153.16 and 10,117.65

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Solution

The fourth proportional to 30,123.00, 45,153.16 and 10,117.65 is: 15,165.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,123.00 : 45,153.16 = 10,117.65 : x
  2. Step 2: Convert to fraction form
    30,123.00/45,153.16 = 10,117.65/x
  3. Step 3: Cross multiply
    30,123.00x = 45,153.16 × 10,117.65
  4. Step 4: Simplify right side
    30,123.00x = 456,843,710.05
  5. Step 5: Solve for x
    x = 456,843,710.05/30,123.00
  6. Step 6: Final answer
    x = 15,165.94

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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.