Home / 21,916.02-30,246.90-14,368.71

Finding the Fourth Proportional to 21,916.02, 30,246.90 and 14,368.71

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Solution

The fourth proportional to 21,916.02, 30,246.90 and 14,368.71 is: 19,830.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,916.02 : 30,246.90 = 14,368.71 : x
  2. Step 2: Convert to fraction form
    21,916.02/30,246.90 = 14,368.71/x
  3. Step 3: Cross multiply
    21,916.02x = 30,246.90 × 14,368.71
  4. Step 4: Simplify right side
    21,916.02x = 434,608,934.50
  5. Step 5: Solve for x
    x = 434,608,934.50/21,916.02
  6. Step 6: Final answer
    x = 19,830.65

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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.