Home / 39,705.40-59,545.46-13,045.20

Finding the Fourth Proportional to 39,705.40, 59,545.46 and 13,045.20

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Solution

The fourth proportional to 39,705.40, 59,545.46 and 13,045.20 is: 19,563.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,705.40 : 59,545.46 = 13,045.20 : x
  2. Step 2: Convert to fraction form
    39,705.40/59,545.46 = 13,045.20/x
  3. Step 3: Cross multiply
    39,705.40x = 59,545.46 × 13,045.20
  4. Step 4: Simplify right side
    39,705.40x = 776,782,369.57
  5. Step 5: Solve for x
    x = 776,782,369.57/39,705.40
  6. Step 6: Final answer
    x = 19,563.65

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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.