Home / 19,875.40-29,812.30-9,341.64

Finding the Fourth Proportional to 19,875.40, 29,812.30 and 9,341.64

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Solution

The fourth proportional to 19,875.40, 29,812.30 and 9,341.64 is: 14,012.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,875.40 : 29,812.30 = 9,341.64 : x
  2. Step 2: Convert to fraction form
    19,875.40/29,812.30 = 9,341.64/x
  3. Step 3: Cross multiply
    19,875.40x = 29,812.30 × 9,341.64
  4. Step 4: Simplify right side
    19,875.40x = 278,495,774.17
  5. Step 5: Solve for x
    x = 278,495,774.17/19,875.40
  6. Step 6: Final answer
    x = 14,012.08

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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.