Home / 42,647.20-63,970.80-14,941.60

Finding the Fourth Proportional to 42,647.20, 63,970.80 and 14,941.60

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Solution

The fourth proportional to 42,647.20, 63,970.80 and 14,941.60 is: 22,412.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,647.20 : 63,970.80 = 14,941.60 : x
  2. Step 2: Convert to fraction form
    42,647.20/63,970.80 = 14,941.60/x
  3. Step 3: Cross multiply
    42,647.20x = 63,970.80 × 14,941.60
  4. Step 4: Simplify right side
    42,647.20x = 955,826,105.28
  5. Step 5: Solve for x
    x = 955,826,105.28/42,647.20
  6. Step 6: Final answer
    x = 22,412.40

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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.