Home / 15,434.56-21,341.10-14,725

Finding the Fourth Proportional to 15,434.56, 21,341.10 and 14,725

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Solution

The fourth proportional to 15,434.56, 21,341.10 and 14,725 is: 20,360.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,434.56 : 21,341.10 = 14,725 : x
  2. Step 2: Convert to fraction form
    15,434.56/21,341.10 = 14,725/x
  3. Step 3: Cross multiply
    15,434.56x = 21,341.10 × 14,725
  4. Step 4: Simplify right side
    15,434.56x = 314,247,697.50
  5. Step 5: Solve for x
    x = 314,247,697.50/15,434.56
  6. Step 6: Final answer
    x = 20,360.00

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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.