Home / 28,435.50-42,678.63-14,937.66

Finding the Fourth Proportional to 28,435.50, 42,678.63 and 14,937.66

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Solution

The fourth proportional to 28,435.50, 42,678.63 and 14,937.66 is: 22,419.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,435.50 : 42,678.63 = 14,937.66 : x
  2. Step 2: Convert to fraction form
    28,435.50/42,678.63 = 14,937.66/x
  3. Step 3: Cross multiply
    28,435.50x = 42,678.63 × 14,937.66
  4. Step 4: Simplify right side
    28,435.50x = 637,518,864.21
  5. Step 5: Solve for x
    x = 637,518,864.21/28,435.50
  6. Step 6: Final answer
    x = 22,419.82

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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.