Home / 21,298.86-29,363.76-14,916.84

Finding the Fourth Proportional to 21,298.86, 29,363.76 and 14,916.84

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Solution

The fourth proportional to 21,298.86, 29,363.76 and 14,916.84 is: 20,565.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,298.86 : 29,363.76 = 14,916.84 : x
  2. Step 2: Convert to fraction form
    21,298.86/29,363.76 = 14,916.84/x
  3. Step 3: Cross multiply
    21,298.86x = 29,363.76 × 14,916.84
  4. Step 4: Simplify right side
    21,298.86x = 438,014,509.72
  5. Step 5: Solve for x
    x = 438,014,509.72/21,298.86
  6. Step 6: Final answer
    x = 20,565.16

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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.