Home / 39,368.53-54,329.28-21,464.29

Finding the Fourth Proportional to 39,368.53, 54,329.28 and 21,464.29

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Solution

The fourth proportional to 39,368.53, 54,329.28 and 21,464.29 is: 29,621.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,368.53 : 54,329.28 = 21,464.29 : x
  2. Step 2: Convert to fraction form
    39,368.53/54,329.28 = 21,464.29/x
  3. Step 3: Cross multiply
    39,368.53x = 54,329.28 × 21,464.29
  4. Step 4: Simplify right side
    39,368.53x = 1,166,139,421.41
  5. Step 5: Solve for x
    x = 1,166,139,421.41/39,368.53
  6. Step 6: Final answer
    x = 29,621.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.