Home / 28,271,571.59-39,016,435.33-21,289,931.53

Finding the Fourth Proportional to 28,271,571.59, 39,016,435.33 and 21,289,931.53

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Solution

The fourth proportional to 28,271,571.59, 39,016,435.33 and 21,289,931.53 is: 29,381,360.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,271,571.59 : 39,016,435.33 = 21,289,931.53 : x
  2. Step 2: Convert to fraction form
    28,271,571.59/39,016,435.33 = 21,289,931.53/x
  3. Step 3: Cross multiply
    28,271,571.59x = 39,016,435.33 × 21,289,931.53
  4. Step 4: Simplify right side
    28,271,571.59x = 830,657,236,716,720.50
  5. Step 5: Solve for x
    x = 830,657,236,716,720.50/28,271,571.59
  6. Step 6: Final answer
    x = 29,381,360.50

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.