Home / 39,217.52-54,119.47-21,312.59

Finding the Fourth Proportional to 39,217.52, 54,119.47 and 21,312.59

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Solution

The fourth proportional to 39,217.52, 54,119.47 and 21,312.59 is: 29,410.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,217.52 : 54,119.47 = 21,312.59 : x
  2. Step 2: Convert to fraction form
    39,217.52/54,119.47 = 21,312.59/x
  3. Step 3: Cross multiply
    39,217.52x = 54,119.47 × 21,312.59
  4. Step 4: Simplify right side
    39,217.52x = 1,153,426,075.13
  5. Step 5: Solve for x
    x = 1,153,426,075.13/39,217.52
  6. Step 6: Final answer
    x = 29,410.99

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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.