Home / 15,688.56-23,419.98-13,443.22

Finding the Fourth Proportional to 15,688.56, 23,419.98 and 13,443.22

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Solution

The fourth proportional to 15,688.56, 23,419.98 and 13,443.22 is: 20,068.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,688.56 : 23,419.98 = 13,443.22 : x
  2. Step 2: Convert to fraction form
    15,688.56/23,419.98 = 13,443.22/x
  3. Step 3: Cross multiply
    15,688.56x = 23,419.98 × 13,443.22
  4. Step 4: Simplify right side
    15,688.56x = 314,839,943.54
  5. Step 5: Solve for x
    x = 314,839,943.54/15,688.56
  6. Step 6: Final answer
    x = 20,068.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.