Home / 39,105.60-58,663.80-14,139.60

Finding the Fourth Proportional to 39,105.60, 58,663.80 and 14,139.60

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Solution

The fourth proportional to 39,105.60, 58,663.80 and 14,139.60 is: 21,211.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,105.60 : 58,663.80 = 14,139.60 : x
  2. Step 2: Convert to fraction form
    39,105.60/58,663.80 = 14,139.60/x
  3. Step 3: Cross multiply
    39,105.60x = 58,663.80 × 14,139.60
  4. Step 4: Simplify right side
    39,105.60x = 829,482,666.48
  5. Step 5: Solve for x
    x = 829,482,666.48/39,105.60
  6. Step 6: Final answer
    x = 21,211.35

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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.