Home / 27,699.95-38,226.23-15,124.70

Finding the Fourth Proportional to 27,699.95, 38,226.23 and 15,124.70

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Solution

The fourth proportional to 27,699.95, 38,226.23 and 15,124.70 is: 20,872.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,699.95 : 38,226.23 = 15,124.70 : x
  2. Step 2: Convert to fraction form
    27,699.95/38,226.23 = 15,124.70/x
  3. Step 3: Cross multiply
    27,699.95x = 38,226.23 × 15,124.70
  4. Step 4: Simplify right side
    27,699.95x = 578,159,994.13
  5. Step 5: Solve for x
    x = 578,159,994.13/27,699.95
  6. Step 6: Final answer
    x = 20,872.24

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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.