Home / 19,259.40-28,897.20-10,500.60

Finding the Fourth Proportional to 19,259.40, 28,897.20 and 10,500.60

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Solution

The fourth proportional to 19,259.40, 28,897.20 and 10,500.60 is: 15,755.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,259.40 : 28,897.20 = 10,500.60 : x
  2. Step 2: Convert to fraction form
    19,259.40/28,897.20 = 10,500.60/x
  3. Step 3: Cross multiply
    19,259.40x = 28,897.20 × 10,500.60
  4. Step 4: Simplify right side
    19,259.40x = 303,437,938.32
  5. Step 5: Solve for x
    x = 303,437,938.32/19,259.40
  6. Step 6: Final answer
    x = 15,755.32

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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.