Home / 48,428.89-72,647.51-13,368.55

Finding the Fourth Proportional to 48,428.89, 72,647.51 and 13,368.55

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Solution

The fourth proportional to 48,428.89, 72,647.51 and 13,368.55 is: 20,053.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,428.89 : 72,647.51 = 13,368.55 : x
  2. Step 2: Convert to fraction form
    48,428.89/72,647.51 = 13,368.55/x
  3. Step 3: Cross multiply
    48,428.89x = 72,647.51 × 13,368.55
  4. Step 4: Simplify right side
    48,428.89x = 971,191,869.81
  5. Step 5: Solve for x
    x = 971,191,869.81/48,428.89
  6. Step 6: Final answer
    x = 20,053.98

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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.