Home / 21,334,139.20-32,001,208.80-15,665,435.20

Finding the Fourth Proportional to 21,334,139.20, 32,001,208.80 and 15,665,435.20

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Solution

The fourth proportional to 21,334,139.20, 32,001,208.80 and 15,665,435.20 is: 23,498,152.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,334,139.20 : 32,001,208.80 = 15,665,435.20 : x
  2. Step 2: Convert to fraction form
    21,334,139.20/32,001,208.80 = 15,665,435.20/x
  3. Step 3: Cross multiply
    21,334,139.20x = 32,001,208.80 × 15,665,435.20
  4. Step 4: Simplify right side
    21,334,139.20x = 501,312,862,778,069.75
  5. Step 5: Solve for x
    x = 501,312,862,778,069.75/21,334,139.20
  6. Step 6: Final answer
    x = 23,498,152.80

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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.