Home / 28,659.04-42,927.95-18,123.62

Finding the Fourth Proportional to 28,659.04, 42,927.95 and 18,123.62

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Solution

The fourth proportional to 28,659.04, 42,927.95 and 18,123.62 is: 27,147.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,659.04 : 42,927.95 = 18,123.62 : x
  2. Step 2: Convert to fraction form
    28,659.04/42,927.95 = 18,123.62/x
  3. Step 3: Cross multiply
    28,659.04x = 42,927.95 × 18,123.62
  4. Step 4: Simplify right side
    28,659.04x = 778,010,005.81
  5. Step 5: Solve for x
    x = 778,010,005.81/28,659.04
  6. Step 6: Final answer
    x = 27,147.11

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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.