Home / 23,869.60-35,730-21,365.60

Finding the Fourth Proportional to 23,869.60, 35,730 and 21,365.60

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Solution

The fourth proportional to 23,869.60, 35,730 and 21,365.60 is: 31,981.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,869.60 : 35,730 = 21,365.60 : x
  2. Step 2: Convert to fraction form
    23,869.60/35,730 = 21,365.60/x
  3. Step 3: Cross multiply
    23,869.60x = 35,730 × 21,365.60
  4. Step 4: Simplify right side
    23,869.60x = 763,392,888
  5. Step 5: Solve for x
    x = 763,392,888/23,869.60
  6. Step 6: Final answer
    x = 31,981.80

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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.