Home / 43,521.02-65,281.53-13,938.74

Finding the Fourth Proportional to 43,521.02, 65,281.53 and 13,938.74

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Solution

The fourth proportional to 43,521.02, 65,281.53 and 13,938.74 is: 20,908.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,521.02 : 65,281.53 = 13,938.74 : x
  2. Step 2: Convert to fraction form
    43,521.02/65,281.53 = 13,938.74/x
  3. Step 3: Cross multiply
    43,521.02x = 65,281.53 × 13,938.74
  4. Step 4: Simplify right side
    43,521.02x = 909,942,273.47
  5. Step 5: Solve for x
    x = 909,942,273.47/43,521.02
  6. Step 6: Final answer
    x = 20,908.11

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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.