Home / 39,065.02-53,909.76-21,160.06

Finding the Fourth Proportional to 39,065.02, 53,909.76 and 21,160.06

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Solution

The fourth proportional to 39,065.02, 53,909.76 and 21,160.06 is: 29,200.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,065.02 : 53,909.76 = 21,160.06 : x
  2. Step 2: Convert to fraction form
    39,065.02/53,909.76 = 21,160.06/x
  3. Step 3: Cross multiply
    39,065.02x = 53,909.76 × 21,160.06
  4. Step 4: Simplify right side
    39,065.02x = 1,140,733,756.19
  5. Step 5: Solve for x
    x = 1,140,733,756.19/39,065.02
  6. Step 6: Final answer
    x = 29,200.90

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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.