Home / 20,501.66-28,293.34-12,541.40

Finding the Fourth Proportional to 20,501.66, 28,293.34 and 12,541.40

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Solution

The fourth proportional to 20,501.66, 28,293.34 and 12,541.40 is: 17,307.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,501.66 : 28,293.34 = 12,541.40 : x
  2. Step 2: Convert to fraction form
    20,501.66/28,293.34 = 12,541.40/x
  3. Step 3: Cross multiply
    20,501.66x = 28,293.34 × 12,541.40
  4. Step 4: Simplify right side
    20,501.66x = 354,838,094.28
  5. Step 5: Solve for x
    x = 354,838,094.28/20,501.66
  6. Step 6: Final answer
    x = 17,307.77

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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.