Home / 39,070.04-53,916.68-21,165.08

Finding the Fourth Proportional to 39,070.04, 53,916.68 and 21,165.08

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Solution

The fourth proportional to 39,070.04, 53,916.68 and 21,165.08 is: 29,207.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,070.04 : 53,916.68 = 21,165.08 : x
  2. Step 2: Convert to fraction form
    39,070.04/53,916.68 = 21,165.08/x
  3. Step 3: Cross multiply
    39,070.04x = 53,916.68 × 21,165.08
  4. Step 4: Simplify right side
    39,070.04x = 1,141,150,845.53
  5. Step 5: Solve for x
    x = 1,141,150,845.53/39,070.04
  6. Step 6: Final answer
    x = 29,207.82

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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.