Home / 48,447.11-72,670.70-13,386.80

Finding the Fourth Proportional to 48,447.11, 72,670.70 and 13,386.80

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Solution

The fourth proportional to 48,447.11, 72,670.70 and 13,386.80 is: 20,080.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,447.11 : 72,670.70 = 13,386.80 : x
  2. Step 2: Convert to fraction form
    48,447.11/72,670.70 = 13,386.80/x
  3. Step 3: Cross multiply
    48,447.11x = 72,670.70 × 13,386.80
  4. Step 4: Simplify right side
    48,447.11x = 972,828,126.76
  5. Step 5: Solve for x
    x = 972,828,126.76/48,447.11
  6. Step 6: Final answer
    x = 20,080.21

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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.