Home / 19,358.70-29,017.50-12,316.56

Finding the Fourth Proportional to 19,358.70, 29,017.50 and 12,316.56

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Solution

The fourth proportional to 19,358.70, 29,017.50 and 12,316.56 is: 18,461.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,358.70 : 29,017.50 = 12,316.56 : x
  2. Step 2: Convert to fraction form
    19,358.70/29,017.50 = 12,316.56/x
  3. Step 3: Cross multiply
    19,358.70x = 29,017.50 × 12,316.56
  4. Step 4: Simplify right side
    19,358.70x = 357,395,779.80
  5. Step 5: Solve for x
    x = 357,395,779.80/19,358.70
  6. Step 6: Final answer
    x = 18,461.77

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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.