Home / 28,721.02-43,019.16-13,898.84

Finding the Fourth Proportional to 28,721.02, 43,019.16 and 13,898.84

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Solution

The fourth proportional to 28,721.02, 43,019.16 and 13,898.84 is: 20,818.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,721.02 : 43,019.16 = 13,898.84 : x
  2. Step 2: Convert to fraction form
    28,721.02/43,019.16 = 13,898.84/x
  3. Step 3: Cross multiply
    28,721.02x = 43,019.16 × 13,898.84
  4. Step 4: Simplify right side
    28,721.02x = 597,916,421.77
  5. Step 5: Solve for x
    x = 597,916,421.77/28,721.02
  6. Step 6: Final answer
    x = 20,818.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.