Home / 21,244.59-31,870.56-6,455.01

Finding the Fourth Proportional to 21,244.59, 31,870.56 and 6,455.01

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Solution

The fourth proportional to 21,244.59, 31,870.56 and 6,455.01 is: 9,683.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,244.59 : 31,870.56 = 6,455.01 : x
  2. Step 2: Convert to fraction form
    21,244.59/31,870.56 = 6,455.01/x
  3. Step 3: Cross multiply
    21,244.59x = 31,870.56 × 6,455.01
  4. Step 4: Simplify right side
    21,244.59x = 205,724,783.51
  5. Step 5: Solve for x
    x = 205,724,783.51/21,244.59
  6. Step 6: Final answer
    x = 9,683.63

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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.