Home / 39,225.02-54,130.85-21,320.02

Finding the Fourth Proportional to 39,225.02, 54,130.85 and 21,320.02

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Solution

The fourth proportional to 39,225.02, 54,130.85 and 21,320.02 is: 29,421.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,225.02 : 54,130.85 = 21,320.02 : x
  2. Step 2: Convert to fraction form
    39,225.02/54,130.85 = 21,320.02/x
  3. Step 3: Cross multiply
    39,225.02x = 54,130.85 × 21,320.02
  4. Step 4: Simplify right side
    39,225.02x = 1,154,070,804.62
  5. Step 5: Solve for x
    x = 1,154,070,804.62/39,225.02
  6. Step 6: Final answer
    x = 29,421.80

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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.