Home / 39,030.04-53,861.43-21,124.99

Finding the Fourth Proportional to 39,030.04, 53,861.43 and 21,124.99

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Solution

The fourth proportional to 39,030.04, 53,861.43 and 21,124.99 is: 29,152.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,030.04 : 53,861.43 = 21,124.99 : x
  2. Step 2: Convert to fraction form
    39,030.04/53,861.43 = 21,124.99/x
  3. Step 3: Cross multiply
    39,030.04x = 53,861.43 × 21,124.99
  4. Step 4: Simplify right side
    39,030.04x = 1,137,822,170.14
  5. Step 5: Solve for x
    x = 1,137,822,170.14/39,030.04
  6. Step 6: Final answer
    x = 29,152.47

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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.