Home / 28,459.90-42,653.95-14,423.45

Finding the Fourth Proportional to 28,459.90, 42,653.95 and 14,423.45

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Solution

The fourth proportional to 28,459.90, 42,653.95 and 14,423.45 is: 21,616.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,459.90 : 42,653.95 = 14,423.45 : x
  2. Step 2: Convert to fraction form
    28,459.90/42,653.95 = 14,423.45/x
  3. Step 3: Cross multiply
    28,459.90x = 42,653.95 × 14,423.45
  4. Step 4: Simplify right side
    28,459.90x = 615,217,115.13
  5. Step 5: Solve for x
    x = 615,217,115.13/28,459.90
  6. Step 6: Final answer
    x = 21,616.98

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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.